Catalog of Fishes
literature references
FishBase
NCBI GenBank
Paratrygon araguaia
Loboda, 2026
Classification: Elasmobranchii Myliobatiformes Potamotrygonidae
Reference of the original description
Four new species of neotropical freshwater stingrays of the genus Paratrygon (Myliobatiformes: Potamotrygonidae) from clear water rivers of the Amazon basin. Neotropical Ichthyology, 24(1), Article e250087
Four new species of neotropical freshwater stingrays of the genus Paratrygon (Myliobatiformes: Potamotrygonidae) from clear water rivers of the Amazon basin. Neotropical Ichthyology, 24(1), Article e250087
Types
Paratrygon araguaia
Holotype: MZUSP: 104390; Paratype: MZUSP: 104397; MZUSP: 104401; MZUSP: 104405; MZUSP: 104406;
Paratrygon araguaia
Holotype: MZUSP: 104390; Paratype: MZUSP: 104397; MZUSP: 104401; MZUSP: 104405; MZUSP: 104406;
Description :
Citation: Paratrygon araguaia Loboda, 2026: In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 05/2026
Please send your images of "Paratrygon araguaia" to info@shark-references.com
Paratrygon araguaia Loboda, 2026; holotype, MZUSP 104390, juvenile female, 287 mm DW, from Araguaia River. A. Dorsal; B. Ventral views © Loboda, 2026
Paratrygon araguaia Loboda, 2026; holotype, MZUSP 104390, juvenile female, 287 mm DW, from Araguaia River. A. Dorsal; B. Ventral views © Loboda, 2026
Short Description
Diagnosis afterLoboda, 2026 [35912]: P. araguaia differs from congeners by the following combination of characters: dorsal disc brown or dark brown with two types of spots scattered through the disc, one type light, larger and distinct in beige or light brown, rounded, with diameter similar to spiracles length, the other type being dark, small and vermicular in shape, occurring between the light ones (vs. P. aiereba, P. orinocensis, P. parvaspina with gray or light brown dorsal coloration with small dark spots; P. munduruku and P. raonii with very dark coloration possessing dark spots in vermicular or dendritic pattern; P. lucindai with grey, dark grey, brown, dark brown dorsal disc coloration with large round spots in beige, grey, brown, dark brown or reddish brown color); large and rounded spiracles, mean spiracle length 5.3% DW (4.3–6.1% DW), with reduced and straight spiracular process covering a small part of the posterior part of the spiracular aperture [vs. P. aiereba, P. parvaspina, P. munduruku and P. raonii with quadrangular spiracles; P. orinocensis with triangular spiracles; P. lucindai with rounded but small spiracles, mean spiracle length 4.4% DW (2.8–6.4% DW) with globular and larger spiracular process]; dermal denticles with central coronal plate acute and reduced, and lateral coronal ridges rounded and well developed (vs. P. aiereba, P. parvaspina, P. munduruku, P. lucindai with dermal denticles possessing developed central coronal plate and reduced lateral coronal ridges; P. orinocensis, P. raonii also with developed central coronal plate, although with less developed lateral coronal ridges than P. araguaia); rostral projection well extended between the nasal capsules, with its extremity exceeding the anterior level of the nasal capsules (vs. P. aiereba, P. orinocensis, P. lucindai, P. munduruku, P. raonii with reduced projections; P. parvaspina with robust projection not reaching anterior level of nasal capsules); anterior part of mesopterygium with its length between half and slightly less than half of the posterior part (vs. other congeners with both parts similar in length or with the part anterior slightly larger than the posterior one).
Diagnosis afterLoboda, 2026 [35912]: P. araguaia differs from congeners by the following combination of characters: dorsal disc brown or dark brown with two types of spots scattered through the disc, one type light, larger and distinct in beige or light brown, rounded, with diameter similar to spiracles length, the other type being dark, small and vermicular in shape, occurring between the light ones (vs. P. aiereba, P. orinocensis, P. parvaspina with gray or light brown dorsal coloration with small dark spots; P. munduruku and P. raonii with very dark coloration possessing dark spots in vermicular or dendritic pattern; P. lucindai with grey, dark grey, brown, dark brown dorsal disc coloration with large round spots in beige, grey, brown, dark brown or reddish brown color); large and rounded spiracles, mean spiracle length 5.3% DW (4.3–6.1% DW), with reduced and straight spiracular process covering a small part of the posterior part of the spiracular aperture [vs. P. aiereba, P. parvaspina, P. munduruku and P. raonii with quadrangular spiracles; P. orinocensis with triangular spiracles; P. lucindai with rounded but small spiracles, mean spiracle length 4.4% DW (2.8–6.4% DW) with globular and larger spiracular process]; dermal denticles with central coronal plate acute and reduced, and lateral coronal ridges rounded and well developed (vs. P. aiereba, P. parvaspina, P. munduruku, P. lucindai with dermal denticles possessing developed central coronal plate and reduced lateral coronal ridges; P. orinocensis, P. raonii also with developed central coronal plate, although with less developed lateral coronal ridges than P. araguaia); rostral projection well extended between the nasal capsules, with its extremity exceeding the anterior level of the nasal capsules (vs. P. aiereba, P. orinocensis, P. lucindai, P. munduruku, P. raonii with reduced projections; P. parvaspina with robust projection not reaching anterior level of nasal capsules); anterior part of mesopterygium with its length between half and slightly less than half of the posterior part (vs. other congeners with both parts similar in length or with the part anterior slightly larger than the posterior one).
Remarks
shark-references Species-ID=17810
shark-references Species-ID=17810
