NEWSLETTER 11/2020 05.11.2020

Please acknowledge use of the database www.shark-references.com in your publications, and cite: 

Pollerspöck, J. & Straube, N. 2020, Bibliography database of living/fossil sharks, rays and chimaeras (Chondrichthyes: Elasmobranchii, Holocephali), www.shark-references.com, World Wide Web electronic publication, Version 2020

New research results from team shark-references!

We analyzed the dentition of 40 jaws of the Velvet Belly Lantern Shark Etmopterus spinax and identified ontogenetic and sexual dimorphic characters such as total number of teeth, number of upper teeth, cusplet numbers in upper jaw teeth and width of lower jaw teeth. Dimorphic characters may reduce intraspecific competition for food, as E. spinax segregates by sex and size and may allow for identifying the male sex. The lower jaw tooth height, a sexually non-dimorphic character, was used to re-calculate the total length of specimens, which represents the first such approach for a squaliform shark. Results derived from the extant E. spinax are subsequently applied to fossil Etmopterus sp. teeth (Miocene) to gain individual information such as sex or size, but also characterize the extinct population from the excavation site by a size distribution profile in comparison to data from extant populations. This approach indicates the presence of multiple ontogenetic stages in the extinct population.

Comparison of fossil Etmopterus sp. upper teeth with Etmopterus spinax upper teeth. a Adult male upper tooth from specimen ES2020_03 (1st functional row; tooth position 5 counting from symphysis). b Potentially adult male fossil upper tooth with increased number of needle-like cusplets (Miocene, Mitterdorf, Neuhofener Beds, Germany). c Adult female upper tooth from specimen ES 1253 (1st functional row; tooth position 6 counting from symphysis). d Potentially (adult?) female fossil upper tooth with triangular, wider cusplets

Morphological variation between sexes and ontogenetic groups. TL total length in cm. If possible, specimens of similar or same sizes were compared at similar or same tooth positions depending on conditions. UJ upper jaw, LJ lower jaw, l left from symphysis.

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New Images

Many thanks to the following people for providing images:

Frederik Mollen (Elasmobranch Research Belgium) for the images of Triakis scyllium MÜLLER & HENLE, 1839

Dr. Tiego Costa for images of Hypanus berthalutzae PETEAN, NAYLOR & LIMA, 2020

Maria Cristina Oddone for a image of Atlantoraja castelnaui (MIRANDA RIBEIRO,1907) and Etmopterus bigelowi SHIRAI & TACHIKAWA, 1993


Missing papers:

Many thanks to all friends of shark-references, who sent us some missing papers last month!

Shark-References would kindly like to ask you for your contribution to this project.

At the moment we are looking for some of the following papers:

Extinct Chondrichthyes:

MATSUMOTO, H. (1936) Upper Miocene vertebrates from Kumanodô, Natori district, province of Rikuzen. Dobutsugaku Zasshi, 48: 475–480, 5 fig.

ALVINERIE, J. & ANDREIEFF, P. & ANGLADA, R. & AUBERT, J. & CAPPETTA, H. & CARALP, M. & CARATINI, C. & CARBONNEL, G. & CATZIGRAS, F. & COURME-RAULT, M.-D. & CHATEAUNEUF, J.-J. & DEMARCQ, G. & DUCASSE, O. & FATTON, E. & GLAÇON, G. & LABRACHERIE, M. & LAURIAT, A. & LE CALVEZ, Y. & LORENZ, C. & MAGNE, J. & MARGEREL, J.-P. & POIGNANT, A. & PUJOL, C. & ROGER, J. & ROMAN, J. & BLONDEAU, A. & MULLER, C. (1973) A propos de la limite oligo-miocène: résultats préliminaires d'une recherche collective sur les gisements d'Escornébéou (Saint-Géours-de-Maremne, Landes, Aquitaine méridionale). Présence de Globigerinoides dans les faunes de l'Oligocène supérieur. Comptes rendus sommaires des séances de la Société géologique de France: 75–76

BOYD, B.M. (2016) Fossil sharks and rays of Gainesville creeks; Alachua County, Florida: Hogtown group; (middle Miocene to lower Pliocene). Florida Paleontological Society, Special Publication

Extant Chondrichthyes:

KAMOHARA, T. (1943) Some unrecorded and two new fishes from Prov. Tosa, Japan. Bulletin of the Biogeographical Society of Japan, 13 (17): 125–137

DE BUEN, F. (1950) Contribuciones a la Ictiología. II. El tiburón vitamínico de la costa uruguaya Galeorhinus vitaminicus nov. sp., y algunas consideraciones generales sobre su biología. Publicaciones Cientificas, Servicio Oceanografico y de Pesca, Ministerio de Industrias y Trabajo, Montevideo No. 4: 153–162.

CADENAT, J. (1951) Initiations Africaines. III. Poissons de Mer du Sénégal. Institute Francais d'Afrique Noire. Initiations Africaines. III. Poissons de Mer du Sénégal.: 1–345

WEIBEZAHN, F.H. (1953) Una nueva especie de Scyliorhinus de Venezuela (Chondrichthyes - Elasmobranchii). Novedades cientificas. Serie zoológica. Museo de Historia Natural La Salle, 9: 1–7.

SMITH, J.L.B. (1958) The mystery killer, the new shark Carcharhinus vanrooyeni. Veld & Vlei, 3 (9): 12–14, 28.

SICCARDI, E. (1961) Cetorhinus en el Atlantico sur (Elasmobranchii: Cetorhinidae). Actas y trabajos del Primer Congreso Sudamericano de Zoologia, 4 (5): 251–263

GUBANOV, E.P. & SCHLEIB, N.A. (1980) Sharks of the Arabian Gulf. Kuwait Ministry of Public Works, Agracultural Department, Fisheries Division. Sharks of the Arabian Gulf.: 1–69

DOLGANOV, V.N. (1983) Rukovodstvo po opredeleniyu khryashchevykh ryb dal'nevostochnykh morei SSSR i sopredel'nykh vod. [Manual for identification of cartilaginous fishes of Far East seas of USSR and adjacent waters.] TINRO, Vladivostok. Rukovodstvo po opredeleniyu khryashchevykh ryb dal'nevostochnykh morei SSSR i sopredel'nykh vod.: 92 pp.

Please support www.shark-references.com and send missing papers (not listed papers or papers without the info-symbol) to juergen.pollerspoeck@shark-references.com or nicolas.straube@shark-references.com



Upcoming Meetings:

NEW information!
After discussions with the EEA Board, we have decided to postpone this year’s European Elasmobranch Association Annual Meeting entirely until 2021. The good news is that it will be at the same venue, around the same time, just one year on! We hope to see you all there.

The 24th Annual Scientific Meeting of the European Elasmobranch Association will be held by the Dutch member group Nederlandse Elasmobranchen Vereniging (NEV) in Leiden, the Netherlands between 28th and 30th October, 2020. The venue is the fascinating Naturalis Biodiversity Center.

Looking forward to seeing you in Leiden!

Important notice

Due to Dutch government measures in response to the Covid19 pandemic, all restaurants, hotels, sights, and attractions in the Netherlands are currently closed. All social gatherings are banned until June 1st, 2020. At this time, we assume that gatherings will be possible by October, and therefore we are going ahead with organizing the conference. Tickets to the conference can be purchased without risk. In case of cancellation due to Covid19 measures, all tickets will be reimbursed in full. In case of personal cancellation, a service fee of approx. 5 Euros will apply.

Puebla, México, 19 - 23/04/2021

The Sociedad Mexicana de Peces Cartilaginosos, A. C. (SOMEPEC), is a non-profit organization that organizes the IX National Symposium of Sharks and Rays, and II Latin American Congress Sharks, Rays and Chimeras.

La Sociedad Mexicana de Peces Cartilaginosos, A. C. (SOMEPEC), es una organización sin fines de lucro, que busca promover el estudio científico de los tiburones y rayas, así como uso racional. Fiel a su objetivo de crear espacios para el intercambio de experiencias y avances de las diferentes líneas de investigación sobre tiburones y rayas, que se desarrollan en México y el resto del mundo, organiza el IX Simposium Nacional de Tiburones y Rayas, y II Congreso Latinoamericano de Tiburones, Rayas y Quimeras.



Eighth International Meeting on the enhancement and preservation of paleontological heritage, at the science faculty of El Jadida, Morocco from November 25 to 27, 2020 (visit the web page : http://www.fs.ucd.ac.ma/fs/riv3p8).




We are excited to announce that the WCMB will be going ahead as planned in Auckland, but we will also be offering an online version of the conference for those that are not able to attend in person. Travel restrictions within New Zealand have been lifted so we will be partnering with the New Zealand Marine Sciences Society (who had to cancel their 2020 annual conference) as a means of increasing local participation in the conference. To accommodate our new partners the abstract submission deadline has been extended until the 14th June 2020.

Key Dates

• Early-bird Registration closes: 1 September 2020
• Late Registration starts: 1 December 2020
• Conference commences: 14 December 2020


Extant Chondrichthyes:

MISAWA, R. & ORLOV, A.M. & ORLOVA, S.Y. & GORDEEV, I.I. & ISHIHARA, H. & HAMATSU, T. & UEDA, Y. & FUJIWARA, K. & ENDO, H. & KAI, Y. (2020): Bathyraja (Arctoraja) sexoculata sp. nov., a new softnose skate (Rajiformes: Arhynchobatidae) from Simushir Island, Kuril Islands (western North Pacific), with special reference to geographic variations in Bathyraja (Arctoraja) smirnoviZootaxa, 4861 (4): 515–543
New species: Bathyraja (Arctoraja) sexoculata
Abstract: A new species of softnose skate (Arhynchobatidae), Bathyraja sexoculata Misawa, Orlov, Orlova, Gordeev and Ishihara is described on the basis of five specimens collected from off the east coast of Simushir Island, Kuril Islands, located in the western North Pacific. The specimens conformed to the genus Bathyraja by having the anteriormost pectoral-fin skeleton almost reaching the snout tip, and a slender unsegmented rostral cartilage. Within Bathyraja, the new species belongs to the subgenus Arctoraja (currently with four valid species) due to the relatively short tail (79–86% of disc width), high count of predorsal caudal vertebrae (more than 86), and large strong nuchal and scapular thorns. It is most similar to Bathyraja (Arctorajasmirnovi, distributed in the Seas of Japan and Okhotsk, in having tail thorns not extending to the nuchal area, median thorns discontinuous from the nape to the tail, and no mid-dorsal thorns. However, B. sexoculata can be distinguished from B. smirnovi by the following characters: three pairs of white blotches on the dorsal disc surface (vs. blotches absent, or a pair of white or dark blotches in B. smirnovi), dark blotch around cloaca, dark bands along mid ventral line of tail (vs. dark blotch and band usually absent ventral disc surface in B. smirnovi), 86–93 predorsal caudal vertebrae (vs. 80–87 in B. smirnovi), and a unique mitochondrial DNA cytochrome c oxidase subunit I sequence. Proportional measurements, including disc width, disc length, head length, preoral length, prenarial length, internarial distance, eye diameter, and tail length, also differ between the two species. For the referential purpose, geographical variations of B. smirnovi distributed in the Seas of Japan and Okhotsk are analyzed and clarified based on morphological and genetic data. Significant morphological and genetic differences were found between local populations in the Seas of Japan and Okhotsk.

PETEAN, F.F. & NAYLOR, G.J.P. & LIMA, S.M.Q. (2020): Integrative taxonomy identifies a new stingray species of the genus Hypanus Rafinesque, 1818 (Dasyatidae, Myliobatiformes) from the Tropical Southwestern Atlantic. Journal of Fish Biology, in press
New species: Hypanus berthalutzae
Abstract: An integrative approach by the congruence of genetics, morphology and ecological niche modelling (ENM) was used to delimit a new species of Hypanus (Rafinesque, 1818), a recently resurrected genus of marine stingrays comprising eight species, five of which occur in the western Atlantic. The species with the widest distribution, Hypanus americanus (Hildebrand and Schroeder, 1928), from the northeastern coast of the United States to southeastern Brazil, was demonstrated to be paraphyletic based on protein‐coding mitochondrial genome analyses. This data set also indicates that the genetic distance between the new species Hypanus berthalutzae sp. nov. and its three closely related species (H. americanusH. longus and H. rudis) varies from 0.82% to 3.14%. In addition, Bayesian Analysis of Population Similarity using the mitochondrial gene mtnd2 supports the separation of H. berthalutzae sp. nov. (southwestern Atlantic) from its sister species H. rudis (eastern Atlantic). Similarly, morphological and morphometric analyses corroborated four morphotypes within the H. americanus species group and indicated the ventral caudal fold height and length and interspiracular and interorbital lengths as useful measurements to distinguish among them. Claspers of adult males also exhibit morphological differences among species. The ENM agreed with molecular and morphological analyses and delimits the distribution of H. berthalutzae sp. nov. to shallow areas close to shore along the Brazilian coast, from the mouth of the Amazon River to São Paulo State, including the northeastern oceanic islands, suggesting that the great outflow of fresh water and sediments and the Mid‐Atlantic Ridge might act as barriers. The integration of these data to describe a new species provides information relevant to their conservation status, because all species of the H. americanus species group are under the “data‐deficient” status.

Extinct Chondrichthyes:
no news this month :-)

DIPPENAAR, S.M. (2020): Neoalbionella izawai n. sp. from the smallfin gulper shark Centrophorus moluccensis Bleeker and additional host records for N. etmopteri (Yamaguti, 1939) off South Africa. Systematic Parasitology, in press
New species: Neoalbionella izawai
AbstractNeoalbionella Özdikmen, 2008 comprises 10 accepted species, which all infect sharks of Squaliformes and Carcharhiniformes. Adult females belonging to species of Neoalbionella, based on the maxillule palp armed with three setae and the maxilliped subchela claw with only one secondary denticle, were collected from sharks off the coast of South Africa. Neoalbionella izawai n. sp. collected from the anterodorsal part of the spiracle opening of Centrophorus moluccensis Bleeker differs from its congeners by having maxillae that are separated except at the tapering tips where they are fused and that are longer than the trunk, uropods originating from the pointed posterior margin of the trunk and that are well developed, and maxillipeds without an additional spine at the base of the subchela barb. Neoalbionella etmopteri (Yamaguti, 1939) is herein reported from two new hosts (Etmopterus spp.) off South Africa.
KHEDDAM, H. & CHISHOLM, L.A. & TAZEROUTI, F. (2020): Septitrema lichae n. g., n. sp. (Monogenea: Monocotylidae) from the nasal tissues of the deep-sea kitefin shark, Dalatias licha (Bonnaterre) (Squaliformes: Dalatiidae), off Algeria. Systematic Parasitology, in press
New genus: Septitrema
New species: Septitrema lichae
AbstractSeptitrema lichae n. g., n. sp. (Monogenea: Monocotylidae: Merizocotylinae) is described from the nasal tissue of the deep-sea kitefin shark, Dalatias licha (Bonnaterre) (Dalatiidae) collected off Algiers, Algeria. The new genus is distinguished from the other genera in the subfamily by the number and arrangement of the loculi on the haptor having one central and seven peripheral loculi. The diagnosis of the Merizocotylinae is amended to accommodate this species and a key to the genera of the Merizocotylinae is provided. Terminology of the haptoral loculi in the Merizocotylinae and the status of some of the genera in the subfamily are also discussed.


PLEASE send your new papers to
juergen.pollerspoeck@shark-references.com or 

Latest Research Articles

Extant Chondrichthyes:
ABURATANI, N. & TAKAGI, W. & WONG, MK. & KADOTA, M. & KURAKU, S. & TOKUNAGA, K. & KOFUJI, K. & SAITO, K. & GODO, W. & SAKAMOTO, T. & HYODO, S. (2020) Fa-cilitated NaCl Uptake in the Highly Developed Bundle of the Nephron in Japanese Red Stingray Hemitrygon akajei Revealed by Comparative Anat-omy and Molecular Mapping. Zoological Science, 37 (5):458-466   https://dx.doi.org/10.2108/zs200038
ALTOBELLI, A.N. & SZEDLMAYER, S.T. (2020) Migration and Residency of Sandbar, Atlantic Sharpnose, Bull, and Nurse Sharks in the Northern Gulf of Mexico. North American Journal of Fisheries Management, in press   https://dx.doi.org/10.1002/nafm.10501
ANDRZEJACZEK, S. & GLEISS, A.C. & LEAR, K.O. & PATTIARATCHI, C. & CHAPPLE, T.K. & MEEKAN, M.G. (2020) Depth-dependent dive kinematics suggest cost-efficient foraging strategies by tiger sharks. Royal Society Open Science, 7 (8): 200789   https://dx.doi.org/10.1098/rsos.200789
ARAUJO, G. & LEGASPI, C. & MATTHEWS, K. & PONZO, A. & CHIN, A. & MANJAJI-MATSUMOTO, B.M. (2020) Citizen science sheds light on the cryptic ornate eagle ray Aetomylaeus vespertilio. Aquatic Conservation-Marine and Freshwater Ecosystems, 30 (10): 2012-2018   https://dx.doi.org/10.1002/aqc.3457
ARMSTRONG, A.J. & ARMSTRONG, A.O. & MCGREGOR, F. & RICHARDSON, A.J. & BENNETT, M.B. & TOWNSEND, K.A. & HAYS, G.C. & VANKEULEN, M. & SMITH, J. & DUDGEON, C.L. (2020) Satellite Tagging and Photographic Identification Reveal Connectivity Between Two UNESCO World Heritage Areas for Reef Manta Rays. Frontiers in Marine Science, 7: 725   https://dx.doi.org/10.3389/fmars.2020.00725
AZRI, A. & TAHA, H. & ARAI, T. (2020) Molecular and morphological evidence for the identity of the blackspot shark, Carcharhinus sealei, and the Indonesian whaler shark, C. tjutjot, with notes on their population structures. Environmental Biology of Fishes, in press   https://dx.doi.org/10.1007/s10641-020-01025-z
BASHIR, Z. & ABDULLAH, MM. & ABD, GHAFFAR, M. & RUSLI, M.U. (2020) Exclusive predation of sea turtle hatchlings by juvenile blacktip reef sharks Carcharhinus melanopterus at a turtle nesting site in Malaysia. Journal of Fish Biology, in press   https://dx.doi.org/10.1111/jfb.14550
BECERRIL-GARCÍA, E.E. & BERNOT-SIMON, D. & ARELLANO-MARTÍNEZ, M. & GALVÁN-MAGAÑA, F. & SANTANA-MORALES, O. & HOYOS-PADILLA, E.M. (2020) Evidence of interactions between white sharks and large squids in Guadalupe Island, Mexico. Scientific Reports, 10: 17158   https://dx.doi.org/10.1038/s41598-020-74294-4
BECERRIL-GARCIA, E.E. & HOYOS-PADILLA, E.M. & SANTANA-MORALES, O. & GUTIERREZ-ORTIZ, M.A. & AYALA-BOCOS, A. & GALVAN-MAGANA, F. (2020) An estimate of the number of white sharks Carcharodon carcharias interacting with ecotourism in Guadalupe Island. Journal of Fish Biology, in press   https://dx.doi.org/10.1111/jfb.14540
BLANCO, M. & SANZ, N. & VALCARCEL, J. & PEREZ-MARTIN, R.I. & SOTELO, C.G. (2020) Does Subunit Composition Influence the Intermolecular Crosslinking of Fish Collagen? A Study with Hake and Blue Shark Skin Collagens. Polymers, 12 (8): 1734   https://dx.doi.org/10.3390/polym12081734
BOUY-OUCOS, I.A. & MORRISON, P.R. & WEIDELI, O.C. & JACQUESSON, E. & PLANES, S. & SIMPFENDORFER, C.A. & BRAUNER, C.J. & RUMMER, J.L. (2020) Thermal tolerance and hypoxia tolerance are associated in blacktip reef shark (Carcharhinus melanopterus) neonates. Journal of Experimental Biology, 223 (14): jeb221937   https://dx.doi.org/10.1242/jeb.221937
BRACCINI, M. & BLAY, N. & HARRY, A. & NEWMAN, S.J. (2020) Would ending shark meat consumption in Australia contribute to the conservation of white sharks in South Africa? Marine Policy, 120: 104144   https://dx.doi.org/10.1016/j.marpol.2020.104144
BREVÉ, N.W.P. & WINTER, H.V. & WIJMANS, P.A.D.M. & GREENWAY, E.S.I. & NAGELKERKE, L.A.J. (2020) Sex-differentiation in seasonal distribution of the starry smooth-hound Mustelus asterias. Journal of Fish Biology, in press   https://dx.doi.org/10.1111/jfb.14548
BREWSTER, L.R. & CAHILL, B.V. & BURTON, M.N. & DOUGAN, C. & HERR, J.S. &  NORTON, L.I. & MCGUIRE, S.A. & PICO, M. & URBAN-GEDAMKE, E. & BAS-SOS-HULL, K. & TYMINSKI, J.P. & HUETER, R.E. & WETHERBEE, B.M. & SHIVJI, M. & BURNIE, N. & AJEMIAN, M.J. (2020) First insights into the vertical habitat use of the whitespotted eagle ray Aetobatus narinari revealed by pop-up satellite archival tags. Journal of Fish Biology, in press   https://dx.doi.org/10.1111/jfb.14560
BROWN, A.N. & FRAZIER, B.S. & GELSLEICHTER, J. (2020) Re-evaluation of reproductive cycle and fecundity of finetooth sharks Carcharhinus isodon (Valenciennes 1839) from the Northwest Atlantic Ocean, with new observations on ovarian cycle and reproductive endocrinology of biennially reproducing sharks. Journal of Fish Biology, in press   https://dx.doi.org/10.1111/jfb.14542
BRUNNSCHWEILER, J.M. & VIGNAUD, T.M. & CÔTÉ, I.M. & MALJKOVIĆ, A. (2020) The costs of cohabiting: the case of sharksuckers (Echeneis naucrates) and their hosts at shark provisioning sites. Ecology, in press   https://dx.doi.org/10.1002/ecy.3160
BURKE, P.J. & RAOULT, V. & NATANSON, L.J. & MURPHY, T.D. & PEDDEMORS, V. & WILLIAMSON, J.E. (2020) Struggling with age: Common sawsharks (Pristiophorus cirratus) defy age determination using a range of traditional methods. Fisheries Research, 231: 105706   https://dx.doi.org/10.1016/j.fishres.2020.105706
BUSTAMANTE, C. & GARCÍACEGARRA, A.M. & VARGASCARO, C. (2020) Observations of coastal aggregations of the broadnose sevengill shark (Notorynchus cepedianus) in Chilean waters. Journal of Fish Biology, in press   https://dx.doi.org/10.1111/jfb.14591
CAMILIERI-ASCH, V. & SHAW, J.A. & YOPAK, K.E. & CHAPUIS, L. & PARTRIDGE, J.C. & COLLIN, S.P. (2020) Volumetric analysis and morphological assessment of the ascending olfactory pathway in an elasmobranch and a teleost using diceCT. Brain Structure & Function, 225: 2347–2375   https://dx.doi.org/10.1007/s00429-020-02127-1
CANINI SAMPAIO, G. & ODDONE, M.C. (2020) Record of the blurred smooth lanternshark, Etmopterus bigelowi Shirai and Tachikawa 1993 (Squaliformes, Dalatiidae), in southern Brazilian waters. Boletín de la Sociedad Zoológica del Uruguay, 29 (1): 35-38   https://dx.doi.org/10.26462/29.1.6
CARDENOSA, D. & FIELDS, A.T. & SHEA, S.K.H. & FELDHEIM, K.A. & CHAPMAN, D.D. (2020) Relative contribution to the shark fin trade of Indo-Pacific and Eastern Pacific pelagic thresher sharks. Animal Conservation, in press   https://dx.doi.org/10.1111/acv.12644
CHAPPELL, A. & SÉRET, B. (2020) Functional Morphology of the Feeding Apparatus of the Snaggletooth Shark, Hemipristis elongata (Carcharhiniformes: Hemigaleidae). Journal of Anatomy, in press   https://dx.doi.org/10.1111/joa.13313
CLAES, J.M. & DELROISSE, J. & GRACE, M.A. & DOOSEY, M.H. & DUCHATELET, L. & MALLEFET, J. (2020) Histological evidence for secretory bioluminescence from pectoral pockets of the American Pocket Shark (Mollisquama mississippiensis). Scientific Reports, 10: 18762   https://dx.doi.org/10.1038/s41598-020-75656-8
CLUA, E.E.G. & LINNELL, J.D.C. & PLANES, S. & MEYER, C.G. (2020) Selective removal of problem individuals as an environmentally responsible approach for managing shark bites on humans. Ocean & Coastal Management, 194: 105266   https://dx.doi.org/10.1016/j.ocecoaman.2020.105266
COETZEE, H.J. & NAIDOO, K. & WAGENAAR, I. (2020) A first observation of spermatogenesis in mature male scalloped hammerheads (Sphyrna lewini) from Zinkwazi, KwaZulu-Natal, South Africa. Fish Physiology and Biochemistry, in press   https://dx.doi.org/10.1007/s10695-020-00871-z
DEACEVEDO, M.G. & FRAZIER, B.S. & BELCHER, C. & GELSLEICHTER, J. (2020) Reproductive cycle and fecundity of the bonnethead Sphyrna tiburo L. from the northwest Atlantic Ocean. Journal of Fish Biology, in press   https://dx.doi.org/10.1111/jfb.14537
DELMORAL-FLORES, L.F. & MEZA-ABUNDIO, I. & PEREZ-ESPANA, H. (2020) First confirmed record of the occurrence of the lesser devil ray, Mobula hypostoma (Elasmobranchii, Mobulidae), in the southwestern Gulf of Mexico. Latin American Journal of Aquatic Research, 48 (4): 696-699   https://dx.doi.org/10.3856/vol48-issue4-fulltext-2459
DEWYSIECKI, A.M. & SANCHEZ-CARNERO, N. & IRIGOYEN, A.J. & MILESSI, A.C. & COLONELLO, J.H. & BOVCON, N.D. & CORTES, F. & BARBINI, S.A. & CEDROLA, P.V. & COLLER, N.M. & JAUREGUIZAR, A.J. (2020) Using temporally explicit habitat suitability models to infer the migratory pattern of a large mobile shark. Canadian Journal of Fisheries and Aquatic Sciences, 77 (9): 1529-1539   https://dx.doi.org/10.1139/cjfas-2020-0036
DINKEL, T.M. & SANCHEZ-LIZASO, J.L. (2020) Involving stakeholders in the evaluation of management strategies for shortfin mako (Isurus oxyrinchus) and blue shark (Prionace glauca) in the Spanish longline fisheries operating in the Atlantic Ocean. Marine Policy, 120: 104124   https://dx.doi.org/10.1016/j.marpol.2020.104124
EBERT, D.A. & DANDO, M. (2020) Field Guide to Sharks, Rays & Chimaeras of Europe and the Mediterranean. Princeton University Press, Woodstock, ISBN: 9780691205984
ENGELBRECHT, T.M. & KOCK, A.A. & O'RIAIN, M.J. & MANN, B.Q. & DUNLOP, S.W. & BARNETT, A. (2020) Movements and growth rates of the broadnose sevengill shark Notorynchus cepedianus in southern Africa: results from a long-term cooperative tagging programme. African Journal of Marine Science, in press   https://dx.doi.org/10.2989/1814232x.2020.1802776
ESPINOZA, M. & ARAYA-ARCE, T. & CHAVES-ZAMORA, I. & CHINCHILLA, I. & CAMBRA, M. (2020) Monitoring elasmobranch assemblages in a data-poor country from the Eastern Tropical Pacific using baited remote underwater video stations. Scientific Reports, 10: 17175   https://dx.doi.org/10.1038/s41598-020-74282-8
FLOWERS, K.I. & CHAPMAN, D.D. & KEMP, T. & WERT, D. & FELDHEIM, K.A. (2020) Annual breeding in a captive smalltooth sawfish, Pristis pectinata. Journal of Fish Biology, in press   https://dx.doi.org/10.1111/jfb.14523
FLOWERS, K.I. & HEITHAUS, M.R. & PAPASTAMATIOU, Y.P. (2020) Buried in the sand: Uncovering the ecological roles and importance of rays. Fish and Fisheries, in press   https://dx.doi.org/10.1111/faf.12508
FRAIJA-FERNÁNDEZ, N. & BOU-QUIEAUX, M.C. & REY, A. & MENDIBIL, I. & COTANO, U. & IRIGOIEN, X. & SAN-TOS, M. & RODRÍGUEZ-EZPELETA, N. (2020) Marine water environmental DNA metabarcoding provides a comprehensive fish diversity assessment and reveals spatial patterns in a large oceanic area. Ecology and Evolution, 10 (14): 7560-7584   https://dx.doi.org/10.1002/ece3.6482 PMCID: PMC7391350
GARCIA-RODRIGUEZ, A. & HERNANDEZ-HERRERA, A. & GALVAN-MAGANA, F. & CEBALLOS-VAZQUEZ, B.P. & PELAMATTI, T. & TOVAR-AVILA, J. (2020) Estimation of the size at sexual maturity of the bat ray (Myliobatis californica) in northwestern Mexico through a multi-model inference. Fisheries Research, 231: 105712   https://dx.doi.org/10.1016/j.fishres.2020.105712
GAUTHIER, A. R. G. & CHATEAUMINOIS, E. & HOARAU, M.G. & GADENNE, J. & HOARAU, E. & JAQUEMET, S. & WHITMARSH, S.K. & HUVENEERS, C. (2020) Variable response to electric shark deterrents in bull sharks, Carcharhinus leucas. Scientific Reports, 10: 17869   https://dx.doi.org/10.1038/s41598-020-74799-y
GEROVASILEIOU, V. & AKYOL, O. & AL-HOSNE, Z. & RASHEED, R.A. & ATAC, E. & BELLO, G. & CETKOVIC, I. & CORSINI-FOKA, M. & CROCETTA, F. & DENITTO, F. & GUIDETTI, P. & GUL, B. & INSACCO, G. & JIMENEZ, C. & LICCHELLI, C. & LIPEJ, L. & LOMBARDO, A. & MANCINI, E. & MARLETTA, G. & MICHAILIDIS, N. & PESIC, A. & POURSANIDIS, D. & REFES, W. & SAHRAOUI, H. & THASITIS, I. & TIRALONGO, F. & TOSUNOGLU, Z. & TRKOV, D. & VAZZANA, A. & ZAVA, B. (2020) New records of rare species in the Mediterranean Sea (May 2020). Mediterranean Marine Science, 21 (2): 340-359   https://dx.doi.org/10.12681/mms.22148
GIMENEZ, J. & CARDADOR, L. & MAZOR, T. & KARK, S. & BELLIDO, J.M. & COLL, M. & NAVARRO, J. (2020) Marine protected areas for demersal elasmobranchs in highly exploited Mediterranean ecosystems. Marine Environmental Research, 160: 105033   https://dx.doi.org/10.1016/j.marenvres.2020.105033
HADI, S. & ANDAYANI, N. & MUT-TAQIN, E. & SIMEON, B.M. & ICHSAN, M. & SUBHAN, B. & MADDUPPA, H. (2020) Genetic connec-tivity of the scalloped hammerhead shark Sphyrna lewini across Indonesia and the Western Indian Ocean. PLoS One, 15 (10): e0230763   https://dx.doi.org/10.1371/journal.pone.0230763
HOFFMANN, S.L. & BUSER, T.J & PORTER, M.E. (2020) Comparative morphology of shark pectoral fins. Journal of Morphology, 281 (11): 1501-1516   https://dx.doi.org/10.1002/jmor.21269
HOOGENBOOM, J.L. & WEINRAUCH, A.M. & WOOD, C.M. & ANDERSON, W.G. (2020) The effects of digesting a urea-rich meal on North Pacific spiny dogfish (Squalus acanthias suckleyi). Comparative Biochemistry and Physiology a-Molecular & Integrative Physiology, 249: 110775   https://dx.doi.org/10.1016/j.cbpa.2020.110775
JORDAAN, G.L. & SANTOS, J. & GROENEVELD, J.C. (2020) Shark discards in selective and mixed-species pelagic longline fisheries. PLoS ONE, 15 (8): e0238595   https://dx.doi.org/10.1371/journal.pone.0238595
KAZAMA, H. & YAMA-GUCHI, Y. & HARADA, Y. & KANEKO, N. & MIZUSHIMA, H. & TSUCHIYA, K. & NEMOTO, M. & TAKAKU, Y. & SAHOO, YV. & TANAKA, M. (2020) Mercury concentrations in the tissues of blue shark (Prionace glauca) from Sagami Bay and cephalopods from East China Sea. Environmental Pollution, 266 (1): 115192   https://dx.doi.org/10.1016/j.envpol.2020.115192
LAMEIRAS, J.L.V. & DE, MOURA, V.M. & DIAS, L.C. & PESSOA, E.R. & MALLMANN, C.S.Y. & COSTA, A.G. & LASMAR, M.L. & NUNEZ, C.V & DA COSTA, O.T.F. & DOS-SANTOS, M.C. (2020) Neutralization of the edemaforming and myotoxic activities of the venom of Potamotrygon motoro Müller and Henle, 1841 (Chondrichthyes - Potamotrygoninae) by antivenoms and circulating immunoglobulins. Toxicon, 186: 126-140   https://dx.doi.org/10.1016/j.toxicon.2020.08.006
LIU, Y. & SHAN, B.B. & YANG, C.P. & ZHAO, Y. & LIU, M.T. & XIE, Q.J. & SUN, D.R. (2020) The complete mitochondrial genome of milk shark, Rhizoprionodon acutus (Ruppell 1837). Mitochondrial DNA Part B-Resources, 5 (1): 310-311   https://dx.doi.org/10.1080/23802359.2019.1703578
LOGAN, R.K. & VAUDO, J.J. & SOUSA, L.L. & SAMPSON, M. & WETHERBEE, B.M. & SHIVJI, M.S. (2020) Seasonal Movements and Habitat Use of Juvenile Smooth Hammerhead Sharks in the Western North Atlantic Ocean and Significance for Management. Frontiers in Marine Science, 7: 566364   https://dx.doi.org/10.3389/fmars.2020.566364
MARTINS, A.P.B. & HEUPEL, M.R. & BIERWAGEN, S.L. & CHIN, A. & SIMPFENDORFER, C.A. (2020) Tidal–diel patterns of movement, activity and habitat use by juvenile mangrove whiprays using towed-float GPS telemetry. Marine and Freshwater Research, in press   https://dx.doi.org/10.1071/MF20078
MATHGER, L.M. & ZHAO, K.V. & HERBST, L. (2020) Photoreceptors in skate are arranged to allow for a broad horizontal field of view. Journal of Comparative Neurology, in press   https://dx.doi.org/10.1002/cne.25014
MATICH, P. & NOWICKI, R.J. & DAVIS, J. & MOHAN, J.A. & PLUMLEE, J.D. & STRICKLAND, B.A. & TINHAN, T.C. & WELLS, R.J.D. & FISHER, F. (2020) Does proximity to freshwater refuge affect the size structure of an estuarine predator (Carcharhinus leucas) in the north-western Gulf of Mexico? Marine and Freshwater Research, 71 (11): 1501-1516   https://dx.doi.org/10.1071/MF19346
MATZ, H. & MUNIR, D. & LOGUE, J. & DOOLEY, H. (2021) The immuno-globulins of cartilaginous fishes. Developmental and Comparative Immunology, 115: 103873   https://dx.doi.org/10.1016/j.dci.2020.103873
MCDAVITT, M.T. & KYNE, P.M. (2020) Social media posts reveal the geographic range of the Critically Endangered clown wedgefish, Rhynchobatus cooki. Journal of Fish Biology, in press   https://dx.doi.org/10.1111/jfb.14530
MEJIA-FALLA, P.A. & CASTRO, E. & BOLANOS, N. & CALDAS, J.P. & BALLESTEROS, C. & BENT-HOOKER, H. & ROJAS, A. & NAVIA, A.F. (2020) Richness and distribution patterns of elasmobranchs in the San Andres, Providencia and Santa Catalina Archipelago: is this area a hotspot of these species in the greater Caribbean? Environmental Biology of Fishes, in press   https://dx.doi.org/10.1007/s10641-020-01029-9
MEZA-ARCE, M.I. & MALPICA-CRUZ, L. & HOYOS-PADILLA, M.E. & MOJICA, F.J. & ARREDONDO-GARCIA, M.C. & LEYVA, C. & ZERTUCHE-CHANES, R. & SANTANA-MORALES, O. (2020) Unraveling the white shark observation tourism at Guadalupe Island, Mexico: Actors, needs and sustainability. Marine Policy, 119: 104056   https://dx.doi.org/10.1016/j.marpol.2020.104056
MISAWA, R. & ORLOV, A.M. & ORLOVA, S.Y. & GORDEEV, I.I. & ISHIHARA, H. & HAMATSU, T. & UEDA, Y. & FUJIWARA, K. & ENDO, H. & KAI, Y. (2020) Bathyraja (Arctoraja) sexoculata sp. nov., a new softnose skate (Rajiformes: Arhynchobatidae) from Simushir Island, Kuril Islands (western North Pacific), with special reference to geographic variations in Bathyraja (Arctoraja) smirnovi. Zootaxa, 4861 (4): 515–543
NIELSEN, J. & HEDEHOLM, R.B. & LYNGHAMMAR, A. & MCCLUSKY, L.M. & BERLAND, B. & STEFFENSEN, J.F. & CHRISTIANSEN, J.S. (2020) Assessing the reproductive biology of the Greenland shark (Somniosus microcephalus). PLoS ONE, 15 (10): e0238986   https://dx.doi.org/10.1371/journal.pone.0238986
O’BRYHIM, J.R. & PARSONS, E.C.M. & LANCE, S.L. (2021) Forensic species identification of elasmobranchs landed in Costa Rican artisanal fisheries. Fisheries Research, 233: 105755   https://dx.doi.org/10.1016/j.fishres.2020.105755
O'NEILL, H.L. & AVILA, C. & WHITE, W.T. (2020) Description of the egg cases and juvenile colouration in two cat-sharks of the genus Atelomycterus (Carcharhiniformes: Scyliorhinidae). Journal of Fish Biology, in press   https://dx.doi.org/10.1111/jfb.14536
OTWAY, N.M. & WEST, G.J. & GORE, D.B. & WILLIAMSON, J.E. (2020) Hook-shaped enterolith and secondary cachexia in a free-living grey nurse shark (Carcharias taurus, Rafinesque 1810). Veterinary Medicine and Science, in press   https://dx.doi.org/10.1002/vms3.333
PANCHENKO, V.V. & ANTONENKO, D.V. (2020) On The Finding of a Spawning Ground of the Alaska Skate (Bathyraja parmifera) in the Northwestern Part of The Sea of Japan Journal of Ichthyology, 60 (5): 797–800   https://dx.doi.org/10.1134/S0032945220050057
PAXTON, A.B. & NEWTON, E.A. & ADLER, A.M. & VANHOECK, R.V. & IVERSEN, E.S. & TAYLOR, J.C. & PETERSON, C.H. & SILLIMAN, B.R. (2020) Artificial habitats host elevated densities of large reef-associated predators. PLoS ONE, 15 (9): e0237374   https://dx.doi.org/10.1371/journal.pone.0237374
PETEAN, F.F. & NAYLOR, G.J.P. & LIMA, S.M.Q. (2020) Integrative taxonomy identifies a new stingray species of the genus Hypanus Rafinesque, 1818 (Dasyatidae, Myliobatiformes) from the Tropical Southwestern Atlantic. Journal of Fish Biology, in press   https://dx.doi.org/10.1111/jfb.14483
PINHEIRO, H.T. & MACENA, B.C.L. & FRANCINI, R.B. & FERREIRA, C.E.L. & ALBUQUERQUE, F.V. & BEZERRA, N.P.A. & CARVALHO, A. & FERREIRA, R.C.P. & LUIZ, O.J. & MELLO, T.J. & MENDONCA, S.A. & NUNES, D.M. & PIMENTEL, C.R. & PIRES, A.M.A. & SOARES-GOMES, A. & VIANA, D.L. & HAZIN, F.H.V. & ROCHA, L.A. (2020) Fish biodiversity of Saint Peter and Saint Paul's Archipelago, Mid-Atlantic Ridge, Brazil: new records and a species database. Journal of Fish Biology, in press   https://dx.doi.org/10.1111/jfb.14484
POPA, D. & BEACH, N. & SADLER, C. (2020) A Blacktip Reef Shark Bite to the Hand in the Remote Solomon Islands. The Journal of Emergency Medicine, in press   https://dx.doi.org/10.1016/j.jemermed.2020.09.009
ROBERSON, L.A. & WATSON, R.A. & KLEIN, C.J. (2020) Over 90 endangered fish and invertebrates are caught in industrial fisheries. Nature Communications, 11 (1): 4764   https://dx.doi.org/10.1038/s41467-020-18505-6
SABAJ, M.H. (2020) Codes for Natural History Collections in Ichthyology and Herpetology. Copeia, 108 (3): 593–669   https://dx.doi.org/10.1643/ASIHCODONS2020
SANTOS DE MOURA, M. & VIANNA, M. (2020) A new threat: assessing the main interactions between marine fish and plastic debris from a scientometric perspective. Reviews in Fish Biology and Fisheries, in press   https://dx.doi.org/10.1007/s11160-020-09621-z
SEIDEL, R. & BLUMER, M. & CHAUMEL, J. & AMINI, S. & DEAN, M.N. (2020) Endoskeletal mineralization in chimaera and a comparative guide to tessellated cartilage in chondrichthyan fishes (sharks, rays and chimaera). Interface, 17 (171): 20200474   https://dx.doi.org/10.1098/rsif.2020.0474
SEN, S. & KIZHAKUDAN, S.J. & ZACHARIA, P.U. & DASH, G. (2020) Reproductive adaptation: a description of claspers of the Spadenose shark and Milk shark from Gujarat. Indian Journal of Geo-Marine Sciences, 49 (7): 1238-1241
SICILIANO, S. & PALMEIRA-NUNES, A.R.O. & RINCON, G. & NUNES, J.L.S. & MOREIRA, S.C. & BARBOSA-FILHO, M.L.V. (2020) Additional Records of the American Elephantfish Callorhinchus callorynchus (Chondrichthyes, Holocephali, Chimaeriformes) in Southeastern Brazil. Natural Resources, 11: 439-445   https://dx.doi.org/10.4236/nr.2020.1110026
SILVA, K.C.R. & ODDONE, M.C. (2020) Descrição da dentição ontogenética da raia-pintada Atlantoraja castelnaui (Ribeiro, 1907) (Chondrichthyes, Arhynchobatidae). Boletín de la Sociedad Zoológica del Uruguay, 29 (1): 1-12   https://dx.doi.org/10.26462/29.1.1
SOARES, K.D.A. & GOMES, U.L. & SANTOS, H.R.S. (2020) Scapulocoracoid morphology in the skates of the tribe Riorajini (Elasmobranchii, Rajiformes, Arhynchobatidae). Zoomorphology, in press   https://dx.doi.org/10.1007/s00435-020-00504-2
SOMERVILLE, R. & FISHER, M. & PERSSON, L. & EHNERT-RUSSO, S. & GELSLEICHTER, J. & BIELMYER-FRASER, G. (2020) Analysis of Trace Element Concentrations and Antioxidant Enzyme Activity in Muscle Tissue of the Atlantic Sharpnose Shark, Rhizoprionodon terraenovae. Archives of Environmental Contamination and Toxicology, in press   https://dx.doi.org/10.1007/s00244-020-00753-8
SPAET, J.L.Y. & MANICA, A. & BRAND, C.P. & GALLEN, C. & BUTCHER, P.A. (2020) Environmental conditions are poor predictors of immature white shark Carcharodon carcharias occurrences on coastal beaches of eastern Australia. Marine Ecology Progress Series, 653: 167-179   https://dx.doi.org/10.3354/meps13488
STOKES, D. & APPS, K. & BUTCHER, P.A. & WEILER, B. & LUKE, H. & COLEFAX, A.P. (2020) Beach-user perceptions and attitudes towards drone surveillance as a shark-bite mitigation tool. Marine Policy, 120: 104127   https://dx.doi.org/10.1016/j.marpol.2020.104127
STRAUBE, N. & POLLERSPÖCK, J. (2020) Intraspecific dental variations in the deep-sea shark Etmopterus spinax and their significance in the fossil record. Zoomorphology, in press   https://dx.doi.org/10.1007/s00435-020-00503-3
SUREANDIRAN, B. & ARULMOORTHY, M.P. & ANBARASI, G. & SRINIVASAN, M. (2020) Occurrence of the near threatened Tiger shark, Galeocerdo cuvier Peron and Lesueur, 1822 from Cuddalore coastal waters, Tamil Nadu, southeast coast of India. Indian Journal of Geo-Marine Sciences, 49 (7): 1298-1301
SVIBEN, S. & TRKOV, D. & MAVRIČ, B. & KRUŽIĆ, P. & LIPEJ, L.  (2019) Observations on the diet of the Starry skate, Raja asterias Delaroche, 1809 (Elasmobranchii: Rajidae) in the Adriatic Sea. Mediterranean Marine Science, 20 (3): 577-584   https://dx.doi.org/10.12681/mms.19338
TIXIER, P. & LEA, M.A. & HINDELL, M.A. & WELSFORD, D. & MAZE, C. & GOURGUET, S. & ARNOULD, J.P.Y. (2020) When large marine predators feed on fisheries catches: Global patterns of the depredation conflict and directions for coexistence. Fish and Fisheries, in press   https://dx.doi.org/10.1111/faf.12504
TRUJILLO-CÓRDOVA, J.A. & MIMILA-HERRERA, E. & CÁRDENAS-PALOMO, N. & HERRERA-SILVEIRA, J.A. (2020) Use of aerial surveys for assessing abundance of the whale shark (Rhincodon typus) and the giant manta (Mobula birostris) in the northern Caribbean Sea off Mexico. Fishery Bulletin, 118 (3): 240-249   https://dx.doi.org/10.7755/FB.118.3.3
TYABJI, Z. & WAGH, T. & PATANKAR, V. & JABADO, R.W. & SUTARIA, D. (2020) Catch composition and life history characteristics of sharks and rays (Elasmobranchii) landed in the Andaman and Nicobar Islands, India. PLoS ONE 15(10): e0231069   https://dx.doi.org/10.1371/journal.pone.0231069
VELLA, N. & VELLA, A. (2020) The complete mitogenome of the Critically Endangered smalltooth sand tiger shark, Odontaspis ferox (Lamniformes: Odontaspididae). Mitochondrial DNA Part B-Resources, 5 (3): 3319-3322   https://dx.doi.org/10.1080/23802359.2020.1814886
WEBER, D.N. & FRAZIER, B.S. & WHITNEY, N.M. & GELSLEICHTER, J. & SANCHO, G. (2020) Stress response and postrelease mortality of blacktip sharks (Carcharhinus limbatus) captured in shore-based and charter-boat-based recreational fisheries. Fishery Bulletin, 118 (3): 297-314   https://dx.doi.org/10.7755/FB.118.3.8
WEBER, H.K. & JONES, C.M. & AJEMIAN, M.J. & MCCALLISTER, M.P. & WINNER, B.L. & POULAKIS, G.R. & BETHEA, D.M. & HOLLENSEAD, L.D. & ZAPF, D. & SWENSON, J.D. & HENDON, J.M. & DALY-ENGEL, T.S. & PHILLIPS, N.M. (2020) Genetic evidence supports a range extension for the Brazilian cownose ray Rhinoptera brasiliensis in the western North Atlantic. Journal of Fish Biology, in press   https://dx.doi.org/10.1111/jfb.14582
WINTER, S.T. & FAHMI & RUDIANTO, D. & LAGLBAUER, B.J.L. & ENDER, I. § SIMPFENDORFER, C.A. (2020) Immature individuals dominate elasmobranch fisheries of the Bali Strait. Marine and Freshwater Research, 71 (11): 1488-1500   https://dx.doi.org/10.1071/MF19300
WU, F. & KINDONG, R. & DAI, X.J. & SARR, O. & ZHU, J.F. & TIAN, S.Q. & LI, Y.K. & NSANGUE, B.T.N. (2020) Aspects of the reproductive biology of two pelagic sharks in the eastern Atlantic Ocean. Journal of Fish Biology, in press   https://dx.doi.org/10.1111/jfb.14526
WUERINGER, B.E. & WINTHER-JANSON, M. & RAOULT, V. & GUTTRIDGE, T.L. (2020) Anatomy of the mechanosensory lateral line canal system and electrosensory ampullae of Lorenzini in two species of sawshark (fam. Pristiophoridae). Journal of Fish Biology, in press   https://dx.doi.org/10.1111/jfb.14567
WYFFELS, J.T. & GEORGE, R. & ADAMS, L. & ADAMS, C. & CLAUSS, T. & NEWTON, A. & HYATT, M.W. & YACH, C. & PENFOLD, L.M. (2020) Testosterone and semen seasonality for the sand tiger shark Carcharias taurus. Biology of Reproduction, 102 (4): 876-887   https://dx.doi.org/10.1093/biolre/ioz221

Extinct Chondrichthyes:

GINTER, M. & SKOMPSKI, S. (2019) The squamation of “Ctenacanthus” costellatus (Chondrichthyes: Ctenacanthiformes) from the Carboniferous of Lublin area, south-eastern Poland. Acta Geologica Polonica, 69 (4): 571–582   https://dx.doi.org/10.24425/agp.2019.126440
HAMM, S.A. (2020) The First Occurrence of Ptychodus latissimus from the Codell Sandstone Member of the Carlile Shale in Kansas. Transactions of the Kansas Academy of Science, 123 (3-4): 419-428   https://dx.doi.org/10.1660/062.123.0311
HODNETT, J.-P.M. & ELLIOTT, D. & TOOMEY, R. &  OLSON, R. & WOOD, J. & SANTUCCI, V.L. (2020) The Late Mississippian (Viséan) Chondrichthyan Assemblage from the Joppa Member of the Ste. Genevieve Formation at Mammoth Cave National Park, Kentucky. Conference: Society of Vertebrate Paleontology Virtual Meeting 2020
NAUGOLNYKH, S.V. (2020) Main biotic and climatic events in Early Permian of the Western Urals, Russia, as exemplified by the shallow-water biota of the early Kungurian lagoons. Palaeoworld, 29 (2): 391-404   https://dx.doi.org/10.1016/j.palwor.2018.10.002
PAILLARD, A. & SHIMADA, K. & PIMIENTO, C. (2020) The fossil record of extant elasmobranchs. Journal of Fish Biology, in press   https://dx.doi.org/10.1111/jfb.14588
SHIMADA, K. & HANKS, H.D. (2020) Shark-Bitten Hesperornithiform Bird Bone from a Turonian (Upper Cretaceous) Marine Deposit of Northeastern South Dakota, U.S.A. Transactions of the Kansas Academy of Science, 123 (3-4): 414-418   https://dx.doi.org/10.1660/062.123.0310       


CAIRA, J.N. & JENSEN, K. & PICKERING, M. & RUHNKE, T.R. & GALLAGHER, K.A. (2020) Intrigue surrounding the life-cycles of species of Clistobothrium (Cestoda: Phyllobothri-idea) parasitising large pelagic sharks. International Journal for Parasitology, in press   https://dx.doi.org/10.1016/j.ijpara.2020.08.002
DIPPENAAR, S.M. (2020) Neoalbionella izawai n. sp. from the smallfin gulper shark Centrophorus moluccensis Bleeker and additional host records for N. etmopteri (Yamaguti, 1939) off South Africa. Systematic Parasitology, in press   https://dx.doi.org/10.1007/s11230-020-09934-4
KHEDDAM, H. & CHISHOLM, L.A. & TAZEROUTI, F. (2020) Septitrema lichae n. g., n. sp. (Monogenea: Monocotylidae) from the nasal tissues of the deep-sea kitefin shark, Dalatias licha (Bonnaterre) (Squaliformes: Dalatiidae), off Algeria. Systematic Parasitology, in press   https://dx.doi.org/10.1007/s11230-020-09942-4



The definitive field guide to all the sharks, rays and chimaeras of the European Atlantic and Mediterranean

The waters of the northeast Atlantic and Mediterranean Sea are home to an amazing variety of sharks, rays and chimaeras. This comprehensive and easy-to-use field guide covers all 146 species found in the Mediterranean, the waters of the European Atlantic and Iceland, along all the Scandinavian coasts, in the Black Sea and as far south as the Canary Islands. Detailed species accounts describe key identification features, habitat, biology and status. Every species account comes with a colour distribution map, a depth guide, at-a-glance icons and colour illustrations. This must-have field guide also features illustrated key guides that enable you to accurately identify down to species, comparison plates of similar species, illustrations of eggcases where known and plates of teeth.

  • The first field guide to cover all 146 species
  • Features hundreds of colour illustrations, photos, maps and diagrams
  • Describes key features, habitat, biology and status
  • Includes depth guides, at-a-glance icons, key guides and teeth plates