Potamotrygon albimaculata Carvalho, 2016

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), Zootaxa 5296 (3), pp. 301-332 : 311-312

Potamotrygon albimaculata Carvalho, 2016

Holotype: MZUSP 105016 ; adult female, 497 mm DW (approximately the same DW as cited in Carvalho, 2016a); ( Fig. 9 ); Pousada Santa Rosa , left bank of Rio Teles Pires —tributary of Rio Tapajós, Mato Grosso state, Brazil; 8º46’45’’S, 57º27’55’’W; depth not listed; M. R. de Carvalho et al.; 06 Dec 2005.

Notes: Cuts close to the branchial region and above left side of digestive tract. Field no. MT 05-21.

Paratypes: MZUSP 103922 : TJ05-39; one juvenile male, 294 mm DW; near mouth Igarapé Ponto Frio , Comunidade Pimental —right margin of Rio Tapajós, Pará state, Brazil; 4º33’05’’S, 56º16’43’’W; depth not listed; M . R. de Carvalho et al.; 10 Oct 2005 .

Notes: Colour pattern on upper left margin mildly lighter than rest of body. DW not provided in Carvalho, 2016a.

MZUSP 104999 ; one adult female, 375 mm DW (cited as 390 mm DW in Carvalho, 2016a); Pousada Santa Rosa , left bank of Rio Teles Pires —tributary of Rio Tapajós, Mato Grosso state, Brazil, 8º46’45’’S, 57º27’55’’W; depth not listed; M . R. de Carvalho et al.; 06 Dec 2005 .

Notes: Branchial basket skin removed near coracoid bar; cut on the left side of abdomen.

MZUSP 105001 : MT 05-04; one adult male, 377 mm DW (approximately the same DW as cited in Carvalho, 2016a); Pousada Santa Rosa , left bank of Rio Teles Pires —tributary of Rio Tapajós, Mato Grosso state, Brazil, 8º46’45’’S, 57º27’55’’W; depth not listed; M . R. de Carvalho et al.; 06 Dec 2005 .

Notes: Specimen with a cut on the ventral facet, left to the abdominal cavity.

MZUSP 105006 : MT 05-09; one adult male, 382 mm DW (approximately the same DW as cited in Carvalho, 2016a); Pousada Santa Rosa , left bank of Rio Teles Pires —tributary of Rio Tapajós, Mato Grosso state, Brazil, 8º46’45’’S, 57º27’55’’W; depth: not listed; M . R. de Carvalho et al.; 06 Dec 2005 .

Notes: Skin sampled removed for Scanning Electronic Microscopy analysis, above the synarcual.

MZUSP 105010 : MT 05-13; one juvenile female, 309 mm DW (approximately the same DW as cited in Carvalho, 2016a); locality: ( Pousada Santa Rosa, left bank of Rio Teles Pires —tributary of Rio Tapajós, Mato Grosso state, Brazil, 8º46’45’’S, 57º27’55’’W; depth not listed; M. R. de Carvalho, F. Marques, A. Datovo & M. Carvalho; 06 Dec 2005.

Notes: Specimen with a cut on the left portion of the abdomen.

Figures

FIGURE 9. Holotype of Potamotrygon albimaculata (MZUSP 105016, female, 497 mm DW) in dorsal (left) and ventral (right) views.