Potamotrygon rex Carvalho 2016
Creators: name: Lima, Arthur De
name: Loboda, Thiago Silva
name: Gianeti, Michel Donato
name: Silva, João Paulo Capretz Batista Da
name: Pinna, Mario De
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Elasmobranchii
Myliobatiformes
Potamotrygonidae
Potamotrygon
Potamotrygon rex

description: Potamotrygon rex Carvalho, 2016
Holotype: MZUSP 120371; adult female, 636 mm DW (cited as 690 mm DW in Carvalho, 2016b) (Fig. 16); Rio Tocantins near the mouth of the right bank tributary Rio Manoel Alves, Tocantins State, Brazil, 11°18'55"S, 48°27'28"W; depth not listed; NEAMB team; 10 Jul 2003.
Notes: Formerly UNT 7139.
Paratypes: MZUSP 120354; adult female, 341 mm DW (approximately the same DW as cited in Carvalho, 2016b); Rio Tocantins, next to Rio Santa Tereza, Tocantins State, Brazil, 11˚47’27”S, 48˚37’2”W; depth not listed; NEAMB team 08 Sep 2003;
Notes: Digestive tract removed. Formerly UNT 2198.
MZUSP 120355; adult male, 352 mm DW (cited as 380 mm DW in Carvalho, 2016b); Rio Tocantins, at Rio Manoel Alves, Tocantins State, Brazil, 11˚18’55”S, 48˚27’28”W; depth not listed; NEAMB team; 13 Jun 2003;
Notes: Digestive tract removed. Formerly UNT 2199.
MZUSP 120356; adult male, 363 mm DW (cited as 378 mm DW in Carvalho, 2016b); Rio Areias at confluence with Rio Tocantins, Tocantins State, Brazil, 10°52'05''S, 48°21'39"W; depth not listed; NEAMB team; 08 Jun 2003.
Notes: Digestive tract removed. Branchial openings medially sectioned, but not dissected. Formerly UNT 2200.
MZUSP 120358; adult male, 432 mm DW; Rio Areias at confluence with Rio Tocantins, Tocantins State, Brazil, 10°52'05''S, 48°21'39"W; depth not listed; NEAMB team; 12 Sep 2002.
Notes: Digestive tract removed. DW not included in Carvalho (2016b). Formerly UNT 7097.
MZUSP 120360; adult male 392 mm DW; Rio Maranhão at Traçadal farm, Tocantins State, Brazil, 12˚31’21”S, 48˚13’41”W; depth not listed; NEAMB team; 03 Mar 2000.
Notes: DW not provided in Carvalho (2016b). Formerly UNT 7116
MZUSP 120362; adult male, 422 mm DW; Rio Paranã at Traçadal Farm, Tocantins State, Brazil, 12˚30’35”S, 48˚12’57”W; depth not listed; NEAMB team; 09 Aug 2000.
Notes: Digestive tract removed. DW not included in Carvalho (2016b). Formerly UNT 7117.
MZUSP 120363; adult male, 391 mm DW; Rio Tocantins at confluence with Rio Santa Tereza, Tocantins state, Brazil, 11°47'26"S, 48°27'28"W; depth not listed; NEAMB team; 14 Oct 2003.
Notes: Digestive tract removed. DW not included in Carvalho, 2016b. Formerly UNT 7118.
MZUSP 120364; adult male, 449 mm DW; Rio Tocantins, Rio Manoel Alves, Tocantins State, Brazil, 11˚18’55”S, 48˚27’28”W; depth: not listed; NEAMB team; 20 Dec 2001.
Notes: Digestive tract removed. DW not included in Carvalho (2016b). Formerly UNT 7123.
MZUSP 120365; one adult male; 421 mm DW; Rio Tocantins, at confluence with Rio Santa Tereza, Tocantins State, Brazil, 11°47'26"S, 48°37'01"W; depth not listed; NEAMB team; 20 Dec 2001.
Notes: Digestive tract removed. Puboischiadic medially bar sectioned. DW not included in Carvalho (2016b). UNT 7125.
MZUSP 120366; one adult male, 413 mm DW; Rio Tocantins at Traçadal farm, Tocantins state, Brazil, 12˚28’1”S, 48˚14’47”W; depth not listed; NEAMB team; 25 Aug 1998.
Notes: Digestive tract removed. Round bite scar on posteromedian margin of disc. DW not included in original description. Formerly UNT 7128.
MZUSP 120367; one adult female, 649 mm DW; Rio Maranhão at Traçadal farm, Tocantins State, Brazil, 12˚31’21”S, 48˚13’41”W; depth not listed; NEAMB team; 27 May 1998.
Notes: DW not included in original description. Formerly UNT 7131.
MZUSP 120368; one adult female, 472 mm DW; Rio Paranã at Traçadal Farm, Tocantins State, Brazil, 12˚30’35”S, 48˚12’57”W; depth not listed; NEAMB team; 03 Jun 2000.
Notes: Digestive tract removed. DW not included in original description. Formerly UNT 7133.
MZUSP 120369; one adult male, 354 mm DW (approximately the same DW as cited in Carvalho, 2016b); Rio Crixás, Brejinho de Nazaré, Tocantins State, Brazil, 11°08'15"S, 48°45'06"W; depth not listed; NEAMB team; 22 Jul 2000.
Notes: Digestive tract removed. Formerly UNT 7136.
MZUSP 120370; one adult female, 636 mm DW; Rio São Valério at confluence with Rio Tocantins, Tocantins State, Brazil, 11˚21’51”S, 48˚28’16”W; depth: not listed; NEAMB team; 06 Oct 2003.
Notes: Right disc margins damaged. Digestive tract removed and puboischiadic bar medially sectioned. DW not included in Carvalho (2016b). Formerly UNT 7138.
MZUSP 120372; one adult female, 618 mm DW (approximately the same DW as cited in Carvalho, 2016b); Rio Tocantins, at Rio Manoel Alves, Tocantins State, Brazil, 11˚18’55”S, 48˚27’28”W; depth not listed; NEAMB team; 08 Aug 2002.
Notes: Skin patch on midportion head removed for SEM. Digestive tract removed. Right gill openings damaged. Right mouth corner damaged. Formerly UNT 7142.
MZUSP 120373; one adult male, 479 mm DW (approximately the same DW as cited in Carvalho, 2016b); Rio Tocantins, at Rio Manoel Alves, Tocantins State, Brazil, 11˚18’55”S, 48˚27’28”W); depth not listed; NEAMB team; 14 Sep 2001.
Notes: Digestive tract removed. Puboischiadic bar sectioned. Formerly UNT 7147.
description: Published as part of Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da & Pinna, Mario De, 2023, Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP), pp. 301-332 in Zootaxa 5296 (3) on pages 320-321, DOI: 10.11646/zootaxa.5296.3.1, http://zenodo.org/record/7983829