NEWSLETTER 10/2015 30.10.2015

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

Pollerspöck, J. & Straube, N. 2015, Bibliography database of living/fossil sharks, rays and chimaeras (Chondrichthyes: Elasmobranchii, Holocephali), www.shark-references.com, World Wide Web electronic publication, Version 2015


Jaime Andres Villafaña Navea
Magister (c) en Ciencias del Mar 
Biólogo Marino, Lic. en Ciencias del Mar.
Laboratorio de Paleobiología (Paleolab)
Centro de Estudios Avanzados en Zonas Aridas (CEAZA)
Universidad Catolica del Norte.
Larrondo 1281, 1781421 Coquimbo,Chile.

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News /own research

Christina Flammensbeck, a master student at the LMU Munich is doing her IRT2 internship with us.
She analyses inter- and intraspecific variation of tooth morphology in etmopterid (suprise!) sharks .
Some of her first results are very exciting: analyzed male sharks show a higher number of lateral cusplets in upper teeth compared to females. Thanks for the images and your hard work Chrissi!




New images at shark-references:

Many thanks to the following persons for the permission to use their images:


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.

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

At the moment we are looking for the following papers:

Paleontological Papers  (newly added)

BROUGH, J. (1935) : On the structure and relationships of the Hybodont sharks. Memoirs and Proceedings of the Manchester Literary and Philosophical Society, 79: 35-49, 1 fig., 3 pl.

DE ALESSANDRI, D. (1910) : Studii sui pesci triasici della Lombardia. Mem. Soc. Sci. Nat., Milano, 7 : 1-145.

ERASMO, G.D. (1960) : Nuovi avanzi ittiolitici della «Série di Lugh» in Somalia conservati nel Museo geologico di Firenze. Palaeontographia Italica, 55: 1-23.

KRIWET, J. (2008) : A new species of extinct bullhead sharks, Paracestracion viohli sp. nov. (Neoselachii, Heterodontiformes), from the Upper Jurassic of South Germany. Ichthyolith Issues, Special Publication 11: 12.

MOSS, M.L. (1970) : Enamel and bone in shark teeth: With a note on fibrous enamel in fishes. Acta Anatomica, 77: 161-187.

REIF, W.-E. (1974) : Teeth and dermal denticles of Heterodontus falcifer (Upper Jurassic) and Heterodontus japonicus (Recent). Annual Report of the Keikyu Aburatsubo Marine Park Aquarium 5,6: 16-20.

STENSIÖ, E.A. (1932) : Triassic fishes from Seast Greenland collected by the Danish expeditions in 1929-1931. Meddelelser om Grønland, 83 (3): 1-305, 94 fig., 39 tagl.

WHITE, E.I. (1968) : Devonian fishes of the Mawson-Mulock area, Victoria Land, Antarctica. Trans-Antarctic Exp. 1955-1958, Scient. Rep. no. 16, Geol., 5: 1-26.


Acta Zoologica (Stockholm)

HOLMGREN, N. 1940 Studies on the head in fishes. Embryological, morphological, and phylogenetical researches. Part I. Development of the skull in sharks and rays. Acta Zoologica (Stockholm), 21 (1-3): 51-267


Bulletin du Muséum National d'Histoire Naturelle

SIGNEUX, J. 1949 Notes paleoichthyologiques. I. Observations sur le genre Scapanorhynchus et ses relations. Bulletin du Muséum National d'Histoire Naturelle, (Série 2), 21 (5): 633-638, figs 1-3

SIGNEUX, J. 1949 Notes paléoichthyologiques. II: Sur les genres Isurus, Chiloscyllium et Triakis trouvés à l'état fossile dans le gisement sénonien de Sahel-Alma. Bulletin du Muséum National d'Histoire Naturelle, 21 (5): 635-638, 3 fig.

SIGNEUX, J. 1950 Notes Paléoichthyologiques. III: Squalidae fossiles du Sénonien de Sahel-Alma. Bulletin du Muséum National d'Histoire Naturelle, 22 (2): 315-319, fig.

SIGNEUX, J. 1951 Notes Paléoichthyologiques. IV: Les Rhinobatidae du Liban. Bulletin du Muséum National d'Histoire Naturelle, 23 (6): 693-695,1 pl.

SIGNEUX, J. 1954 Notes Paléoichthyologiques. VI (suite). Cas d'ovoviviparité chez un Rhinobate fossile. Bulletin du Muséum National d'Histoire Naturelle, 26 (5): 644-645

BRANISA, L. & HOFSTAETTER, R. & SIGNEUX, J. 1964 Addditions a la faune ichthyologique du Cretace supérieur de Bolivie. Bulletin du Muséum National d'Histoire Naturelle, (Serie 2), 36: 279-297, 3 Fig.

BRANISA, L. & HOFSTETTER, R. 1966 Nouvelle contribution a I etude de la paléontologie et de I Age du groupe Puca (Cretace-Paleogene, Bolivie). Bulletin du Muséum National d'Histoire Naturelle, (Série 2), 38: 301-310, 1 Fig.; Paris.

BLOT, J. 1980 La faune ichtyologique des gisements du Monte Bolca (Province de Ve´rone, Italie). Catalogue syste´matique pre´sentant l'etat actuel des recherches concernant cette faune.Bulletin du Muséum National d'Histoire Naturelle, (Série 4), sect. C, 2 (4): 339-396.


Bulletin of the Mizunami Fossil Museum

ITOIGAWA, J. & NISHIMOTO, N. & HIROYUKI, A. 1977 Cretaceous fossil elasmobranchs from japan (first report). Bulletin of the Mizunami Fossil Museum, 4: 119-138

NISHIMOTO, H. & MOROZUMI, Y. 1979 Late Cretaceous elasmobranches from the Izumi Mountain Range. Bulletin of the Mizunami Fossil Museum, 6: 133-140

NOMURA, M. & HATANAKA, O. & NISHIMOTO, H. & KARASAWA, H. & NANAO NOJIRIKO GROUP 1991 Megasqualus serriculus Jordan and Hannibal (Squalidae: Squaliformes: Elasmobranchii) from the Middle Miocene Nanao Calcareous Sandstone, Nanao City, Noto Peninsula, Central Japan. Bulletin of the Mizunami Fossil Museum, 18: 33-45

OKAMURA, Y. & FUDOUJI, Y. & KARASAWA, H. 2000 A first record of the genus Pseudaetobatus (Myliobatiformes, Myliobatidae) from the middle Eocene Okinoshima Group, Kyushu, Japan. Bulletin of the Mizunami Fossil Museum, 27: 199-200


Revista de la Societat Paleontologica d'Elx

MENDIOLA, C. 1995 Familia Zygzabatidae n. (Batomorphii, Myliobatoidea). Zygzabatis maroccana n. gen., n. sp. Revista de la Societat Paleontologica d'Elx, 1: 1-4, 2 tabl., 1 pl.

MENDIOLA, C. 1996 Rhincodon ferriolensis n. sp. (Neoselachii, Orectolobiformes, Rhincodontidae) del Burdigaliense superior de Elche (Sureste de España). Revista de la Societat Paleontologica d'Elx, 2: 1-6, 2 fig., 1 pl.

MENDIOLA, C. 1999 Myliobatoideos nuevos (Neoselachii, Batomorphii) del Thanesiense ? de oued Zem (Cuenca de los Ouled Abdoun, Marruecos). Revista de la Societat Paleontologica d'Elx, 6: 1-42, 10 fig., pl. 1-12

MENDIOLA, C. 2001 Hallazgo de Carcharodon carcharias (Linnaeus 1758) en el Plioceno superior de Conil de la Frontera (Cádiz, España). Revista de la Societat Paleontológica d'Elx, 7: 1-9

MENDIOLA, C. 2002 Notorynchus lawleyi Cigala Fulgosi 1983 (Chondrichthyes, Hexanchiformes) en el Plioceno inferior de Guardamar y Plioceno medio de Rojales (Sureste de España, Cuenca del Bajo Segura, Cordillera Bética Oriental). Revista de la Societat Paleontológica d'Elx, 8: 1-15

MENDIOLA, C. & MARTINEZ, J. 2003 La ictiofauna fósil (Chondrichthyes, Euselachii) del Mesozoico y Cenozoico de España. Revista de la Societat Paleontológica d'Elx, 9: 1-103

MENDIOLA, C. 2004 Primera cita española del género Ptychodus AGASSIZ 1839 (Chondrichthyes, Euselachii). Revista de la Societat Paleontológica d'Elx, 13: 1-14

MENDIOLA, C. & LÓPEZ, A. 2005 La ictiofauna fósil (Chondrichthyes, Euselachii) del Serravalliense de Alicante (Sureste de España). Revista de la Societat Paleontológica d'Elx, 14: 1-51


Transactions of the Gulf Coast Association of Geological Societies

BREARD, S. & STRINGER, G.L. 1995 Paleoenvironment of a diverse marine vertebrate fauna from the Yazoo Clay (Late Eocene) at Copenhagen, Caldwell Parish, Louisiana. Transactions of the Gulf Coast Association of Geological Societies, 45: 77-85

STRINGER, G.L. & BREARD, S. 1997 Comparison of otolith-based paleoecology to other fossil groups: an example from the Cane River Formation (Eocene) of Louisiana. Transactions of the Gulf Coast Association of Geological Societies, 47: 563-570

BREARD, S. & STRINGER, G.L. 1999 Integrated paleoecology and marine vertebrate fauna of the Stone City Formation (Middle Eocene), Brazos River section, Texas. Transactions of the Gulf Coast Association of Geological Societies, 49: 132-142

STRINGER, G.L. & BREARD, S.Q. & KONTROVITZ, M. 2001 Biostratigraphy and paleoecology of diagnostic invertebrates and vertebrates from the type locality of the Oligocene Rosefield Marl Beds, Louisiana. Transactions of the Gulf Coast Association of Geological Societies, 51: 321-328

STRINGER, G.L. & MILLER, M. 2001 Paleoenvironmental interpretations based on vertebrate fossil assemblages: an example of their utilization in the Gulf Coast. Transactions of the Gulf Coast Association of Geological Societies, 51: 329-338


Journal of Ichthyology

PINCHUK, V.I. & PERMITIN, Y.Y. 1970 New data on dogfish sharks of the Family Squalidae in the southeastern Atlantic. Journal of Ichthyology, 10 (3): 273-276

DOMANEVSKIY, L.N. 1975 The Frill Shark, Chlamydoselachus anguineus, from the Cape Blanc Area (Central Eastern Atlantic). Journal of Ichthyology, 15 (6): 1000-1002

GUBANOV, Y.P. 1978 The reproduction of some species of pelagic sharks from the equatorial zone of the Indian Ocean. Journal of Ichthyology, 18: 781-792

MYAGKOV, N.A. & KONDYURIN, V.V. 1978 Reproduction of the catshark Apristurus saldanha.Journal of Ichthyology, 4: 627-628

PIOTROVSKIY, A.S. & PRUT'KO, V.G. 1980 The occurrence of the goblin shark, Scapanorhynchus owstoni (Chondrichthyes, Scapanorhynchidae) in the Indian Ocean. Journal of Ichthyology, 20 (1): 124-125

LITVINOV, F.F. & AGAPOV, S.N. & KATALIMOV, V.G. & MIRONOV, S.G. 1983 Rate of tooth Replacement in Blue Shark, Prionace glauca (Carcharhinidae), in relation to Feeding. Journal of Ichthyology, 23 (1): 143-145

GUBANOV, E.P. 1985 Presence of the sharp tooth sand shark, Odontaspis ferox (Odontaspididae), in the open waters of the Indian Ocean. Journal of Ichthyology, 25 (2): 156-158

PARIN, N.V. & KOTLYAR, A.N. 1985 Electric rays of the genus Torpedo in open waters of the eastern south Pacific Ocean. Journal of Ichthyology, 26 (1): 1-12

MYAGKOV, N.A. & KONDYURIN, V.V. 1986 Dogfishes Squalus (Squalidae), of the Atlantic Ocean and comparative notes on the species of this genus from other regions. Journal of Ichthyology, 27 (1): 1-18

SHCHERBACHEV, Y.N. 1987 Preliminary list of thalassobathyal fishes of the tropical and subtropical waters of the Indian Ocean. Journal of Ichthyology, 27 (2): 37-46

GUSHCHIN, A.V. & SUKHOVERSHIN, V.V. & KONOVALENKO, I.I. & SUKHORUKOVA, V.S. 1987 On the capture of the polar shark genus Somniosus (Squalidae) in the Southern Hemisphere. Journal of Ichthyology, 27 (1): 115-117

MYAGKOV, N.A. 1987 External structure of the cephalic brain of the pelagic shark, Squaliolus laticaudus. Journal of Ichthyology, 27 (6): 125-127

GUBANOV, E.P. 1988 Morphological characteristics of the requiem shark, Carcharinus obscurus , of the Indian Ocean. Journal of Ichthyology, 28 (6): 68-73

KASHKIN, N.I. 1989 Mesopelagic ichthyofauna of the southwestern Pacific. Journal of Ichthyology, 29 (3): 116-127, tabs 1-4

MANILO, L.G. 1993 New reports of fish on the shelf and upper slope of the Western Indian Ocean. Journal of Ichthyology, 33 (1): 128-136

PSHENICHNOV, L.K. 1997 A new record for subantarctic fish fauna species of shark Squalus acanthias (Squalidae). Journal of Ichthyology, 37 (8): 678-679

NOVIKOV, N.P. 2002 Ecology of the ratfish Hydrolagus africanus (Gilchrist) from the Madagascar and Mozambique submarine ridges. Journal of Ichthyology, 42 (3): 271-274


Aqua, International Journal of Ichyology

LASSO, C.A. & RIAL, B.A. & LASSO-ALCALA, O. 1997 Notes on the biology of the freshwater stingrays Paratrygon aiereba (Müller & Henle, 1841) and Potamotrygon orbignyi (Castelnau, 1855) (Chondrichthyes: Potamotrygonidae) in the Venezuelan Llanos. Aqua, International Journal of Ichyology, 2 (3): 39-50

HUMAN, B.A. 2011 Description of a unique catshark egg capsule (Chondrichthyes: Scyliorhinidae) from the North West Shelf, Western Australia. Aqua, International Journal of Ichyology, 17 (4): 199-209



Upcoming Meetings:

  • SIBIC 2016: VI Iberian Congress of ichthyology. 21.-24. June 2016, Murcia, Spain;a special session will be dedicated to Chondrichthyan research!
    • Registration starting on 1st September 2015
    • Call for abstracts starting on 1st October 2015
    • Abstracts submission deadline: 15th February 2016
    • Early-bird registration fee deadline: 31st March 2016

  • Annual joint meeting of Ichthyologists and herpetologists including the American Elasmobranch Society meeting. 2016: New Orleans, Louisiana, 6.-10. July 2016, New Orleans. Lousiana, USA. http://www.asih.org/meetings

New described species/Taxonomic News:


CARRILLO-BRICEÑO, J.D. & MAXWELL, E. & AGUILERA, O.A. & SÁNCHEZ, R. & SÁNCHEZ-VILLAGRA, M.R. (2015): Sawfishes and Other Elasmobranch Assemblages from the Mio-Pliocene of the South Caribbean (Urumaco Sequence, Northwestern Venezuela). PLoS ONE, 10 (10): e0139230
New species: Carcharhinus caquetius
Abstract: The Urumaco stratigraphic sequence, western Venezuela, preserves a variety of paleoenvironments that include terrestrial, riverine, lacustrine and marine facies. A wide range of fossil vertebrates associated with these facies supports the hypothesis of an estuary in that geographic area connected with a hydrographic system that flowed from western Amazonia up to the Proto-Caribbean Sea during the Miocene. Here the elasmobranch assemblages of the middle Miocene to middle Pliocene section of the Urumaco sequence (Socorro, Urumaco and Codore formations) are described. Based on new findings, we document at least 21 taxa of the Lamniformes, Carcharhiniformes, Myliobatiformes and Rajiformes, and describe a new carcharhiniform species (†Carcharhinus caquetius sp. nov.). Moreover, the Urumaco Formation has a high number of well-preserved fossil Pristis rostra, for which we provide a detailed taxonomic revision, and referral in the context of the global Miocene record of Pristis as well as extant species. Using the habitat preference of the living representatives, we hypothesize that the fossil chondrichthyan assemblages from the Urumaco sequence are evidence for marine shallow waters and estuarine habitats.


MONKS, S. & ZARAGOZA-TAPIA, F. & PULIDO-FLORES, G. & VIOLANTE-GONZALEZ, J. (2015): A New Species of Serendip (Cestoda: Tetraphyllidea: Serendipeidae) in Rhinoptera steindachneri (Chondrichthyes: Myliobatidae) from the Pacific Coast of Mexico. Comparative Parasitology, 82 (2): 262-268
New species: Serendip danbrooksi
Abstract: A species of Serendip Brooks and Barriga, 1995, Serendip danbrooksi n. sp., is described from Mexico as a parasite of Rhinoptera steindachneri Evermann and Jenkins, 1891. The new species differs from Serendip deborahae, the type and only other known member of the genus, by having bothridia subdivided by 2 septa, 1 simple and 1 bifurcating, rather than 3 septa, 2 simple and 1 bifurcating, and by having 37–61 testes versus 64–116 testes, respectively. In general, S. danbrooksi n. sp. is smaller than S. deborahae in the number of proglottids (average 77 vs. 150, respectively) and length (maximum length 15.3 mm vs. 60.0 mm, respectively). Clarification of the details of some previously described structures is discussed.


DNA capture reveals transoceanic gene flow in endangered river sharks. Proceedings of the National Academy of Sciences, in press
New synonyms: Glyphis siamensis and Glyphis fowlerae are junior synonyms of Glyphisgangeticus
Abstract: For over a hundred years, the “river sharks” of the genus Glyphis were only known from the type specimens of species that had been collected in the 19th century. They were widely considered extinct until populations of Glyphis-like sharks were rediscovered in remote regions of Borneo and Northern Australia at the end of the 20th century. However, the genetic affinities between the newly discovered Glyphis-like populations and the poorly preserved, original museum-type specimens have never been established. Here, we present the first (to our knowledge) fully resolved, complete phylogeny of Glyphis that includes both archival-type specimens and modern material. We used a sensitive DNA hybridization capture method to obtain complete mitochondrial genomes from all of our samples and show that three of the five described river shark species are probably conspecific and widely distributed in Southeast Asia. Furthermore we show that there has been recent gene flow between locations that are separated by large oceanic expanses. Our data strongly suggest marine dispersal in these species, overturning the widely held notion that river sharks are restricted to freshwater. It seems that species in the genus Glyphis are euryhaline with an ecology similar to the bull shark, in which adult individuals live in the ocean while the young grow up in river habitats with reduced predation pressure. Finally, we discovered a previously unidentified species within the genus Glyphis that is deeply divergent from all other lineages, underscoring the current lack of knowledge about the biodiversity and ecology of these mysterious sharks.

PLEASE send your new papers tojuergen.pollerspoeck@shark-references.comor nicolas.straube@shark-references.com   

Latest Research Articles


Extant Chondrichthyes:

AMIN, R. & RITTER, E. & WETZEL, A. (2015) An Estimation of Shark-Attack Risk for the North and South Carolina Coastline. Journal of Coastal Research, 31 (5): 1253-1259http://dx.doi.org/10.2112/jcoastres-d-14-00027.1
BA, A. & DIOUF, K. & GUILHAUMON, F. & PANFILI, J. (2015) Slow growth of the overexploited milk shark Rhizoprionodon acutus affects its sustainability in West Africa. Journal of Fish Biology, 87 (4): 912-929 http://dx.doi.org/10.1111/jfb.12764
BALL, R.E. & OLIVER, M.K. & GILL, A.B. (2015) Early life sensory ability - ventilatory responses of thornback ray embryos (Raja clavata) to predator-type electric fields.Developmental Neurobiology, in press http://dx.doi.org/10.1002/dneu.22355
BERGÉS-TIZNADO, M.E. & MÁRQUEZ-FARÍAS, F. & LARA-MENDOZA, R.E. & TORRES-ROJAS, Y.E. & GALVÁN-MAGAÑA, F. & BOJÓRQUEZ-LEYVA, H. & PÁEZ-OSUNA, F. (2015) Mercury and Selenium in Muscle and Target Organs of Scalloped Hammerhead Sharks Sphyrna lewini of the SE Gulf of California: Dietary Intake, Molar Ratios, Loads, and Human Health Risks. Archives of Environmental Contamination and Toxicology, 69 (4): 440-452http://dx.doi.org/10.1007/s00244-015-0226-8
BIGMAN, J.S. & KNUCKEY, J.D.S. & EBERT, D.A. (2015) Color aberrations in Chondrichthyan fishes: first records in the genus Bathyraja (Chondrichthyes: Rajiformes: Arhynchobatidae).Marine Biodiversity, in press http://dx.doi.org/10.1007/s12526-015-0403-z
BOSCH, A.C. & O’NEILL, B. & SIGGE, G.O. & KERWATH, S.E. & HOFFMAN, L.C. (2015)Heavy metal accumulation and toxicity in smoothhound (Mustelus mustelus) shark from Langebaan Lagoon, South Africa. Food Chemistry, 190: 871-878http://dx.doi.org/10.1016/j.foodchem.2015.06.034
BOSCHETTI, F. & VANDERKLIFT, M.A. (2015) How the movement characteristics of large marine predators influence estimates of their abundance. Ecological Modelling, 313: 223-236http://dx.doi.org/10.1016/j.ecolmodel.2015.06.035
BOWDEN, D.L. & VARGAS-CARO, C. & OVENDEN, J.R. & BENNETT, M.B. & BUSTAMANTE, C. (2015) The phylogenomic position of the grey nurse shark Carcharias taurus Rafinesque, 1810 (Lamniformes, Odontaspididae) inferred from the mitochondrial genome.Mitochondrial DNA, in press http://dx.doi.org/10.3109/19401736.2015.1089486
BRACCINI, M. (2015) Is a Global Quantitative Assessment of Shark Populations Warranted?Fisheries, 40 (10): 492-501 http://dx.doi.org/10.1080/03632415.2015.1080689
CASTRO, S.I. & HLEAP, J.S. & CÁRDENAS, H. & BLOUIN, C. (2015) Molecular Organization of the 5s rDna Gene Type II in Elasmobranchs. RNA Biol., in press
CHRISTIE, A. (2015) Account of a mass aggregation of Port Jackson sharks Heterodontus portusjacksoni at Point Cooke Marine Sanctuary, Victoria, Australia. Victorian Naturalist, 132 (4): 108-117
CLARKE, J. & MILLIGAN, R.J. & BAILEY, D.M. & NEAT, F.C. (2015) A Scientific Basis for Regulating Deep-Sea Fishing by Depth. Current Biology, in presshttp://dx.doi.org/10.1016/j.cub.2015.07.070
CRAY, C. & RODRIGUEZ, M. & FIELD, C. & MCDERMOTT, A. & LEPPERT, L. & CLAUSS, T. & BOSSART, G.D. (2015) Protein and cholesterol electrophoresis of plasma samples from captive cownose ray (Rhinoptera bonasus). Journal of Veterinary Diagnostic Investigation, in press http://dx.doi.org/10.1177/1040638715607293
DELRIEU-TROTTIN, E. & WILLIAMS, J.T. & BACCHET, P. & KULBICKI, M. & MOURIER, J. & GALZIN, R. & DE LOMA, T.L. &D MOU-TAM, G. & SIU, G. & PLANES, S. (2015) Shore fishes of the Marquesas Islands, an updated checklist with new records and new percentage of endemic species. Check List, 11 (5): 1758 http://dx.doi.org/10.15560/11.5.1758ISSN 1809-127X
EVANS, A.N. & NUNEZ, B.S. (2015) Fresh water acclimation elicits a decrease in plasma corticosteroids in the euryhaline Atlantic stingray, Dasyatis sabina. General and Comparative Endocrinology, in press http://dx.doi.org/10.1016/j.ygcen.2015.08.010
FERRANDO, S. & GALLUS, L. & GAMBARDELLA, C. & CROCE, D. & DAMIANO, G. & MAZZARINO, C. & VACCHI, M. (2015) First description of a palatal organ in Chimaera monstrosa (Chondrichthyes, Holocephali). The Anatomical Record, in presshttp://dx.doi.org/10.1002/ar.23280
FRENCH, R.P. & LYLE, J. & TRACEY, S. & CURRIE, S. & SEMMENS, J.M. (2015) High survivorship after catch-and-release fishing suggests physiological resilience in the endothermic shortfin mako shark (Isurus oxyrinchus). Conservation Physiology, 3 (1): cov044http://dx.doi.org/10.1093/conphys/cov044
GKAFAS, G.A. & MEGALOFONOU, P. & BATZAKAS, G. & APOSTOLIDIS, A.P. & EXADACTYLOS, A. (2015) Molecular phylogenetic convergence within Elasmobranchii revealed by cytochrome oxidase subunits. Biochemical Systematics and Ecology, 61: 510-515http://dx.doi.org/10.1016/j.bse.2015.07.025
GONZÁLEZ-SOLÍS, D. & ALI, A.H. (2015) Redescription of Paraleptus chiloscyllii Yin et Zhang, 1983 (Nematoda: Physalopteridae) from the Arabian carpetshark Chiloscyllium arabicum (Chondrichthyes: Hemiscylliidae) off Iraq. Acta Parasitologica, 60 (4):759-766http://dx.doi.org/10.1515/ap-2015-0108
GOUK, C. & PASRICHA, D. & LINGATHAS, S. (2015) Shark attack: the emergency presentation and management. BMJ Case Report: bcr-2015-212380 http://dx.doi.org/10.1136/bcr-2015-212380
GRIGOROV, I.V. & ORLOV, A.M. & BAITALYUK, A.A. (2015) Spatial Distribution, Size Composition, Feeding Habits, and Dynamics of Abundance of Alaska Skate Bathyraja parmifera in the North Pacific. Journal of Ichthyology, 55 (5): 644-663  http://dx.doi.org/10.1134/S0032945215050069
HENDERSON, A.C. & REEVE, A.J. & JABADO, R.W. & NAYLOR, G.J.P. (2015) Taxonomic assessment of sharks, rays and guitarfishes (Chondrichthyes: Elasmobranchii) from south-eastern Arabia, using the NADH dehydrogenase subunit 2 (NADH2) gene. Zoological Journal of the Linnean Society, in press http://dx.doi.org/10.1111/zoj.12309
HENNINGSEN, A.D. & WHITAKER, B.R. & KIGHT, K. & HESS, D.L. & HADFIELD, C. & ZOHAR, Y. (2015) The use of a gonadotropin releasing hormone antagonist in captive sand tiger sharks, Carcharias taurus, and the serum levels of the antagonist and reproductive steroid hormones. Journal of Zoo and Aquarium Research, 3 (3): 107-115
HINOJOSA-ALVAREZ, S. & DIAZ-JAIMES, P. & MARCET-HOUBEN, M. & GABALDON, T. (2015) The complete mitochondrial genome of the Giant Manta ray, Manta birostris. Mitochondrial DNA, 26 (5): 787-788 http://dx.doi.org/10.3109/19401736.2013.855753
JEEVITHAN, E. & BAO, B. & ZHANG, J. & HONG, S. & WU, W. (2015) Purification, characterization and antioxidant properties of low molecular weight collagenous polypeptide (37 kDa) prepared from whale shark cartilage (Rhincodon typus). Journal of Food Science and Technology, 52 (10): 6312-6322 http://dx.doi.org/10.1007/s13197-015-1715-5
LANGE, T. & BREHM, J. & MORITZ, T. (2015) A practical key for the identification of large fish rostra. Spixiana, 38 (1): 145-160
LARANJEIRA, M.E. & GUIMARÃES, J.P. & AMORIM, A.F. & ROTUNDO, M. & RICI, R.E. & MARI, R.B. (2015) Ultrastructure of dermal denticles in sharpnose shark (Rhizoprionodon lalandii) (Elasmobranchii, Carcharhinidae). Microscopy Research and Technique, 78 (10): 859–864 j http://dx.doi.org/10.1002/jemt.22546
LI, C. & CORRIGAN, S. & YANG, L. & STRAUBE, N. & HARRIS, M. & HOFREITER, M. & WHITE, W.T. & NAYLOR, G.J.P. (2015) DNA capture reveals transoceanic gene flow in endangered river sharks. Proceedings of the National Academy of Sciences, in presshttp://dx.doi.org/10.1073/pnas.1508735112
LI, R. & REDMOND, A.K. & WANG, T. & BIRD, S. & DOOLEY, H. & SECOMBES, C.J. (2015)Characterisation of the TNF superfamily members CD40L and BAFF in the small-spotted catshark (Scyliorhinus canicula). Fish & Shellfish Immunology, 47 (1): 381–389http://dx.doi.org/10.1016/j.fsi.2015.09.033
LUCIFORA, L.O. & BARBINI, S.A. & LLAMAZARES VEGH, S. & SCARABOTTI, P.A. & VARGAS , F. & SOLARI, A. & MABRAGAÑA, E. & DÍAZ DE ASTARLOA , J.M. (2015)Geographic distribution of the short-tailed river stingray (Potamotrygon brachyura): assessing habitat loss and fishing as threats to the world’s largest obligate freshwater elasmobranch. Marine and Freshwater Research, in press http://dx.doi.org/10.1071/MF15003
LUCIFORA, L.O. & DE CARVALHO, M.R. & KYNE, P.M. & WHITE, W.T. (2015) Freshwater sharks and rays. Current Biology,  25: R971–R973 http://dx.doi.org/10.1016/j.cub.2015.06.051
MADSEN, S.S. & ENGELUND, M.B. & CUTLER, C.P. (2015) Water Transport and Functional Dynamics of Aquaporins in Osmoregulatory Organs of Fishes. Biological Bulletin, 229 (1): 70-92
MAI, Q. & LI, W. & CHEN, H. & AI W, CHEN X. (2015) Complete mitochondrial genome and phylogenetic position of the Sicklefin weasel shark Hemigaleus microstoma. Mitochondrial DNA, in press http://dx.doi.org/10.3109/19401736.2015.1066363
MAIA, C. & SERRA-PEREIRA, B. & ERZINI, K. & FIGUEIREDO, I. (2015) How is the morphology of the oviducal gland and of the resulting egg capsule associated with the egg laying habitats of Rajidae species? Environmental Biology of Fishes, 98 (10): 2037-2048http://dx.doi.org/10.1007/s10641-015-0425-1
MARONGIU, M.F. & PORCU, C. & BELLODI, A. & CUCCU, D. & MULAS, A. & FOLLESA, M.C. (2015) Oviducal gland microstructure of Raja miraletus and Dipturus oxyrinchus (Elasmobranchii, Rajidae). Journal of Morphology, 276 (11): 1392-1403http://dx.doi.org/10.1002/jmor.20426
MARTINS, A.P.B. & DA SILVA FILHO, E. & FEITOSA, L.M. & SILVA, L.P.N. & DE ALMEIDA, Z.S. & NUNES, J.L.S. (2015) Sexual dimorphism of sharks from the amazonian equatorial coast. Universitas Scientiarum, 20 (3): 297-304 http://dx.doi.org/10.11144/Javeriana.SC20-3.sdos
MATOS, J. & LOURENÇO, H.M. & BRITO, P. & MAULVAULT, A.L. & MARTINS, L.L. & AFONSO, C. (2015) Influence of bioaccessibility of total mercury, methyl-mercury and selenium on the risk/benefit associated to the consumption of raw and cooked blue shark (Prionace glauca). Environmental Research, in press http://dx.doi.org/10.1016/j.envres.2015.09.015
MCCLUSKY, L.M.  (2015) Sperm of Galeorhinus galeus (Elasmobranchii, Triakidae) Traverse an Excurrent Duct System Characterized by Pronounced Regionalization: A Scanning Electron and Light Microscopy Study. The Anatomical Record, in press http://dx.doi.org/10.1002/ar.23204
MCCULLY PHILLIPS, S.R. & SCOTT, F. & ELLIS, J.R. (2015) Having confidence in productivity susceptibility analyses: A method for underpinning scientific advice on skate stocks?Fisheries Research, 171: 87-100 http://dx.doi.org/10.1016/j.fishres.2015.01.005
MCKINNEY, M.A. & DEAN, K. & HUSSEY, N.E. & CLIFF, G. & WINTNER, S.P. & DUDLEY, S.F. & ZUNGU, M.P. & FISK, A.T. (2015) Global versus local causes and health implications of high mercury concentrations in sharks from the east coast of South Africa. Science of The Total Environment, 541: 176-183 http://dx.doi.org/10.1016/j.scitotenv.2015.09.074
MONKS, S. & ZARAGOZA-TAPIA, F. & PULIDO-FLORES, G. & VIOLANTE-GONZALEZ, J. (2015) A New Species of Serendip (Cestoda: Tetraphyllidea: Serendipeidae) in Rhinoptera steindachneri (Chondrichthyes: Myliobatidae) from the Pacific Coast of Mexico. Comparative Parasitology, 82 (2): 262-268 http://dx.doi.org/10.1654/4745.1
NOZU, R. & MURAKUMO, K. & MATSUMOTO, R. & NAKAMURA, M. & UEDA, K. & SATO, K. (2015) Gonadal Morphology, Histology, and Endocrinological Characteristics of Immature Female Whale Sharks, Rhincodon typus. Zoological Science, 32 (5): 455-458http://dx.doi.org/10.2108/zs150040
O‘MALLEY, G.F. & O‘MALLEY, R.N. & PHAM, O. & RANDOLPH, F. (2015) Retained Stingray Barb and the Importance of Imaging. Wilderness and Environmental Medicine, 26 (3): 375-379http://dx.doi.org/10.1016/j.wem.2015.03.006
PANCHENKO, V.V. & BOIKO, M.I. (2015) On Discovery of the Mottled Skate Raja pulchra off the Coast of Primorye (Sea of Japan). Journal of Ichthyology, 55 (5):  http://dx.doi.org/10.1134/S0032945215050112
RICCI, J.A. & VARGAS, C.R. & SINGHAL, D. & LEE, B.T. (2015) Shark attack-related injuries: Epidemiology and implications for plastic surgeons. Journal of Plastic, Reconstructive & Aesthetic Surgery, in press http://dx.doi.org/10.1016/j.bjps.2015.08.029
ROLIM, F.A. & ROTUNDO, M.M. & VASKE-JÚNIOR, T. (2015) Notes on the reproductive biology of the Brazilian electric ray Narcine brasiliensis (Elasmobranchii: Narcinidae). Journal of Fish Biology, in press http://dx.doi.org/10.1111/jfb.12778
ROSS, S.W. & RHODE, M. & QUATTRINI, A.M. (2015) Demersal fish distribution and habitat use within and near Baltimore and Norfolk Canyons, US middle Atlantic slope. Deep Sea Research Part I: Oceanographic Research Papers, 103: 137-154http://dx.doi.org/10.1016/j.dsr.2015.06.004
TOMITA, T. & COTTON, C.F. & TODA, M. (2015) Ultrasound and physical models shed light on the respiratory system of embryonic dogfishes. Zoology (Jena), in presshttp://dx.doi.org/10.1016/j.zool.2015.09.002
TOMITA, T. & MURAKUMO, K. & MIYAMOTO, K. & SATO, K. & OKA, S.I. & KAMISAKO, H. & TODA, M. (2015) Eye retraction in the giant guitarfish, Rhynchobatus djiddensis (Elasmobranchii: Batoidea): a novel mechanism for eye protection in batoid fishes. Zoology (Jena), in press http://dx.doi.org/10.1016/j.zool.2015.09.004
TRNSKI, T. & DUFFY, C.A.J. & FRANCIS, M.P. & MCGROUTHER, M.A. & STEWART, A.L. & STRUTHERS, C.D. & ZINTZEN, V. (2015) Recent collections of fishes at the Kermadec Islands and new records for the region. Bulletin of the Auckland Museum, 20: 463–480
TSAI, W.-P. & SUN, C.-L. & LIU, K.-M. & WANG, S.-B. & LO, N.C.H. (2015) CPUE standardization and catch estimate of blue shark by taiwanese large-scale tuna longline fishery in the North Pacific Ocean. Journal of Marine Science and Technology-Taiwan, 23 (4): 567-574http://dx.doi.org/10.6119/jmst-014-1230-1
TYMINSKI, J.P. & GELSLEICHTER, J.J. & MOTTA, P.J. (2015) Androgen receptors in the bonnethead, Sphyrna tiburo: cDNA cloning and tissue-specific expression in the male reproductive tract. General and Comparative Endocrinology, in presshttp://dx.doi.org/10.1016/j.ygcen.2015.08.018
WANG, J. & CHEN, H. & LIN, L. & AI, W. & CHEN, X. (2015) Mitochondrial genome and phylogenetic position of the sliteye shark Loxodon macrorhinus. Mitochondrial DNA, in presshttp://dx.doi.org/10.3109/19401736.2015.1082099
WHITE, W.T. & APPLEYARD, S.A. & SABUB, B. & KYNE, P.M. & HARRIS, M. & LIS, R. & BAJE, L. & USU, T. & SMART, J.J. & CORRIGAN, S. & YANG, L. & NAYLOR, G.J.P. (2015)Rediscovery of the Threatened River Sharks, Glyphis garricki and G. glyphis, in Papua New Guinea. PLoS ONE, 10 (10): e0140075 http://dx.doi.org/10.1371/journal.pone.0140075
Extinct Chondrichthyes:

ANTUNES, M.T. & LEGOINHA, P. & BALBINO, A. (2015) Megalodon, mako shark and planktonic foraminifera from the continental shelf off Portugal and their age. Geologica Acta, 13 (3): 181-190
BOR, T.J. & PETERS, W.J.M. (2015) The Pliocene locality Balgoy (province of Gelderland, The Netherlands) and a new record of the great white shark, Carcharodon carcharias (Linnaeus, 1758). Cainozoic Research, 15: 59-73
BRITO, P.M. & RICHTER, M. (2015) The contribution of Sir Arthur Smith Woodward to the palaeoichthyology of Brazil – Smith Woodward’s types from Brazil. In: Arthus Smith Woodward: His Life and Inlfuence on Modern Vertebrate Paleontology, Edition: Special Publications - Lyell Collection, Publisher: Geological Society of London, Editors: Z. Johanson, P.M. Barrett; M.Richter; M. Smith: in press http://dx.doi.org/10.1144/SP430.12
CARRILLO-BRICEÑO, J.D. & MAXWELL, E. & AGUILERA, O.A. & SÁNCHEZ, R. & SÁNCHEZ-VILLAGRA, M.R. (2015) Sawfishes and Other Elasmobranch Assemblages from the Mio-Pliocene of the South Caribbean (Urumaco Sequence, Northwestern Venezuela). PLoS ONE, 10 (10): e0139230 http://dx.doi.org/10.1371/journal.pone.0139230
CHAHUD, A. & PETRI, S. (2015) Geology and taphonomy of the base of the Taquaral Member, Irati Formation (Permian, Paraná Basin), Brazil. Acta Geologica Polonica, 65 (3): 379–387http://dx.doi.org/10.1515/agp-2015-0017
FISCHER , J. & LEIPNER , A. & HARTKOPF-FRODER, C. & SCHNEIDER, J.W. & WITTRY, J. & SOWIAK, M. (2015) Pennsylvanian chondrichthyan egg capsules from the Piesberg quarry, Northwest Germany. Abstract. In: PalGes 2015 14.-16. September 2015 Schiffweiler-Reden, Germany
KOGAN, I. & ROMANO, C. & KOOT, M.B. & SCHNEIDER, J.W. & FISCHER, J. (2015)Aquatic vertebrate communities after the end-Permian mass extinction: actinopterygians on top. Abstract In: PalGes 2015 14.-16. September 2015 Schiffweiler-Reden, Germany
MARTIN, J.E. & TACAIL, T. & ADNET, S. & GIRARD, C. & BALTER, V. (2015) Calcium isotopes reveal the trophic position of extant and fossil elasmobranchs. Chemical Geology, 415: 118–125 http://dx.doi.org/10.1016/j.chemgeo.2015.09.011
SCHMEISSER MCKEAN, R.L. & GILLETTE, D.D. (2015) Taphonomy of large marine vertebrates in the Upper Cretaceous (Cenomanian-Turonian) Tropic Shale of southern Utah.Cretaceous Research, 56: 278-292 http://dx.doi.org/10.1016/j.cretres.2015.05.009
SCHWIMMER, D.R. & WEEMS, R.E. & SANDERS, A.S. (2015) A late cretaceous shark coprolite with baby freshwater turtle vertebrae inclusions. Palaios, 30 (9): 707-713http://dx.doi.org/10.2110/palo.2015.019
SMITH, M.M. & RILEY, A. & FRASER, G.J. & UNDERWOOD, C. & WELTEN, M. & KRIWET, J. & PFAFF, C. & JOHANSON, Z. (2015) Early development of rostrum saw-teeth in a fossil ray tests classical theories of the evolution of vertebrate dentitions. Proceedings of the Royal Society of London, Series B, 282: 20151628 http://dx.doi.org/10.1098/rspb.2015.1628
UNDERWOOD, C. & SMITH, M.M. & JOHANSON, Z. (2015) Sclerorhynchus atavus and the convergent evolution of rostrum-bearing chondrichthyans. Geological Society, London, Special Publications, 430: in press http://dx.doi.org/10.1144/SP430.7
UNDERWOOD, C. & WARD, D. & GUINOT, G. (2015) Development of understanding of the Mesozoic and Cenozoic chondrichthyan fossil record. Geological Society, London, Special Publications, 430: in press http://dx.doi.org/10.1144/SP430.4
VULLO, R. & GUINOT, G. (2015) Denticle-embedded ampullary organs in a Cretaceous shark provide unique insight into the evolution of elasmobranch electroreceptors. The Science of Nature, 102: 65 http://dx.doi.org/10.1007/s00114-015-1315-2


HASELI, M. & PALM, H.W. (2015) Dollfusiella qeshmiensis n. sp (Cestoda: Trypanorhyncha) from the cowtail stingray Pastinachus sephen (ForsskAyenl) in the Persian Gulf, with a key to the species of Dollfusiella Campbell & Beveridge, 1994. Systematic Parasitology, 92 (2): 161-169http://dx.doi.org/10.1007/s11230-015-9592-x
MONKS, S. & ZARAGOZA-TAPIA, F. & PULIDO-FLORES, G. & VIOLANTE-GONZALEZ, J. (2015) A New Species of Serendip (Cestoda: Tetraphyllidea: Serendipeidae) in Rhinoptera steindachneri (Chondrichthyes: Myliobatidae) from the Pacific Coast of Mexico. Comparative Parasitology, 82 (2): 262-268 http://dx.doi.org/10.1654/4745.1



The epic history of sharks.

There are many strange sharks but the ancestors were even weirder and more wonderful than those swimming today:


Shark skin sleuthing

Dermal denticles are tiny tooth-like scales that line the skin of nearly all elasmobranch species, providing a hard yet flexible armour that is gradually shed and regenerated. Their hydrodynamic design has provided inspiration for swimsuits worn by Olympic athletes, drag-eliminating coatings for vehicles, and even surfaces that impede bacterial growth in hospitals. But can they be used for shark conservation?

Alien Sharks: Goblin Shark

Video of Mitsukurina owstoni Jordan 1898

Freshwater sharks rediscovered in Papua New Guinea fish market after 50 years

During a recent research expedition to Papua New Guinea, an international team of scientists stumbled across some unusual shark fins and jaws in a fish market on the small island of Daru. Analysis confirmed that they belonged to Speartooth sharks (Glyphis glyphis) and New Guinea River sharks (Glyphis garricki), two rare freshwater shark species that hadn’t been documented in Papua New Guinea since the 1970’s.

Video: Giant guitarfish eye gymnastics

Like sharks, the giant guitarfish doesn’t have eyelids that close all the way, so it can’t blink. That might guarantee a win in a staring contest, but it does pose problems for eye protection in the sandy, tropical waters where the creature lives.

Ancient “Supershark” Fossils Found in Texas

Even before the age of dinosaurs, enormous, toothy predators were roaming what is now Texas. New work led by the Museum shows that giant sharks were hunting in the shallow waters that once covered most of North America for much longer than previously thought.