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Potamotrygon histrix
(Müller & Henle, 1841)
Porcupine river stingray
Classification: Elasmobranchii Myliobatiformes Potamotrygonidae
Reference of the original description
Systematische Beschreibung der Plagiostomen. Berlin, Veit, pp. 1–200
Systematische Beschreibung der Plagiostomen. Berlin, Veit, pp. 1–200
Synonyms / new combinations and misspellings
Ellipesurus hystrix, Potamotrygon aff. hystrix, Potamotrygon cf. histrix, Potamotrygon hystrix, Taeniura hystrix, Trygon histrix, Trygon hystrix, Trygon (Trygon) hystrix
Ellipesurus hystrix, Potamotrygon aff. hystrix, Potamotrygon cf. histrix, Potamotrygon hystrix, Taeniura hystrix, Trygon histrix, Trygon hystrix, Trygon (Trygon) hystrix
Types
Potamotrygon histrix
Potamotrygon hystrix
Lectotype: MNHN: A-2449; Paralectotype: MNHN: A-2433 MNHN: A-8706 (lost) MNHN: ?A-2434 RMNH: 4258
Potamotrygon histrix
Potamotrygon hystrix
Lectotype: MNHN: A-2449; Paralectotype: MNHN: A-2433 MNHN: A-8706 (lost) MNHN: ?A-2434 RMNH: 4258
Description :
Citation: Potamotrygon histrix (Müller & Henle, 1841): In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 04/2024
Common names
Porcupine river stingray
Porcupine river stingray
Short Description
Occurs in marshy zones where it is frequently found partially hidden in the sandy bottom. This behavior, associated with its perfect immobility and its capacity to undergo homochromy, makes it practically undetectable to the eye. Like all species of this family, P. hystrix has a tail which is equipped with one or more spines which fall spontaneously and are replaced 2 or 3 times a year. At a length of 4 to 6 cm, the spine is a barbed, flattened skeletal formation inserted dorsally in the middle portion of the tail. Its structure is similar to that of a tooth and appears as an ivory cone covered with enamel. The spine is coated with an extremely toxic mucus produced by the cells of the skin and inflicts very painful wounds [20199].
Occurs in marshy zones where it is frequently found partially hidden in the sandy bottom. This behavior, associated with its perfect immobility and its capacity to undergo homochromy, makes it practically undetectable to the eye. Like all species of this family, P. hystrix has a tail which is equipped with one or more spines which fall spontaneously and are replaced 2 or 3 times a year. At a length of 4 to 6 cm, the spine is a barbed, flattened skeletal formation inserted dorsally in the middle portion of the tail. Its structure is similar to that of a tooth and appears as an ivory cone covered with enamel. The spine is coated with an extremely toxic mucus produced by the cells of the skin and inflicts very painful wounds [20199].
Biology
Subtropical; 24°C - 26°C
Subtropical; 24°C - 26°C
Size / Weight / Age
Max length : 40.0 cm WD male/unsexed; [20199]; max. published weight: 15.0 kg [20204]
Max length : 40.0 cm WD male/unsexed; [20199]; max. published weight: 15.0 kg [20204]
Habitat
Freshwater; benthopelagic
Freshwater; benthopelagic
Remarks
shark-references Species-ID=4949; CITES: (see: Protected Species for more details) Convention on International Trade in Endangered Speciesof Wild Fauna and Flora annex: III; Council Regulation 2017/160 annex: C
shark-references Species-ID=4949; CITES: (see: Protected Species for more details) Convention on International Trade in Endangered Speciesof Wild Fauna and Flora annex: III; Council Regulation 2017/160 annex: C
Parasites (arranged by Jürgen Pollerspöck)
Monogenea
Cestoda
Nematoda
Acanthocephala
Monogenea
- Potamotrygonocotyle eurypotamoxenus Domingues & Marques, 2007 [7408]
- Potamotrygonocotyle tsalickisi Mayes, Brooks & Thorson, 1981 [14549] [22565]
Cestoda
- Acanthobothrium regoi Brooks, Mayes & Thorson, 1981 [16268] [22567] [28741]
- Paroncomegas araya (Woodland, 1934) Campbell, Marques & Ivanov, 1999 [16268] [16112] [22567]
- Paroncomegas baeri (Lopez-Neyra & Diaz-Ungria, 1958) [16350]
- Potamotrygonocestus travassosi Rego, 1979 [16382] [16268]
- Rhinebothrium paratrygoni Rego & Dias, 1976 [16268] [22567] [13826] [25154]
- Rhinebothroides freitasi (Rego, 1979) Brooks, Mayes & Thorson, 1981 [16382] [16268] [16268] [16917] [22567] [22567]
- Rhinebothroides glandularis Brooks, Mayes & Thorson, 1981 [16268] [22567]
- Rhinebothroides scorzai (Lopez-Neyra & Diaz-Ungria, 1958) Mayes, Brooks & Thorson, 1981 [16350] [16268]
Nematoda
- Echinocephalus daileyi Deardorff, Brooks & Thorson, 1981 [16913] [22567]
- Echinocephalus diazi Troncy, 1969 [16913]
- Terranova caballeroi Diaz-Ungria, 1967 [17029]
- Terranova diazungriai Moravec, Prouza & Royero, 1998 [22568] [22567]
Acanthocephala
