Potamotrygon wallacei Carvalho, Rosa & Araujo 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 wallacei

description: Potamotrygon wallacei Carvalho, Rosa & Araújo, 2016
Holotype: MZUSP 117809; adult female, 253 mm DW (cited as 264 mm DW in Carvalho et al., 2016), (Fig. 18); Rio Negro, municipality of Barcelos, Amazonas, Brazil, 0°57' 30.24"S, 62°56'14.697"W; depth: not listed; F. Marques et al.; 09 Jan 2011.
Notes: Specimen with a cut on right portion of abdomen.
Paratypes: MZUSP 10290; one female, 206 mm DW; vicinity of Manaus, Rio Negro, Amazonas, Brazil; depth not listed; EPA; 15 Nov 1967.
Notes: Specimen not located. DW provided here is cited on Carvalho et al. (2016).
MZUSP 19209; one female, 217 mm DW; Rio Negro, at mouth of Rio Cuieiras, above Manaus, Amazonas, Brazil; depth not listed; Alpha Helix Amazon Expedition; 01 Jan 1977.
Notes: Specimen not located. DW provided here is cited on Carvalho et al. (2016).
MZUSP 104962: RN04-07; one adult female, 210 mm DW; lake adjacent to mouth of Rio Demeni, Rio Negro, Barcelos, Amazonas, Brazil, 0°45'52.9986"S, 62°56'34.998"W; depth not listed; M. L. G. de Araújo et al.; 24 Feb 2004.
Notes: Digestive tract removed. One diplospondylic centrum removed. Damage on the right portion of posteroventral surface of disc. Tail broken. DW not provided in Carvalho et al. (2016).
MZUSP 104966: N04-58; one female, 320 mm TL; Comunidade Marabá, Rio Negro, Barcelos, Amazonas, Brazil, 0°58'37.9992"S, 62°56'34.998"W; depth not listed; M. L. G. de Araújo et al.; 24 Feb 2004.
Notes: Specimen not located. TL is provided instead of DW in Carvalho et al. (2016).
MZUSP 104977: RN05-65; one adult male, 161 mm DW. Praia do Tabuleiro, Rio Negro, Barcelos, Amazonas, Brazil, 0°54'24.0006"S, 62°58'20.9994"W; depth not listed; M. Domingues et al.; 31 Jan 2005.
Notes: Cut on right portion of abdomen. Branchial chamber opened. Skin patch removed for SEM. DW is not mentioned in Carvalho et al. (2016).
MZUSP 117804: RN11-01; one female, 189 mm DW; Rio Negro, Barcelos, Amazonas, Brazil, 0°57'30.24"S, 62°56'14.697"W; depth not listed; F. Marques et al.; 09 Jan 2011.
Notes: Cut on right portion of abdomen. Three perforations piercing the right portion of disc. DW not mentioned in Carvalho et al. (2016).
MZUSP 117805: RN11-08; one adult male, 145 mm DW; Rio Negro, Barcelos, Amazonas, Brazil, 0°57'30.24"S, 62°56'14.697"W; depth not listed; F. Marques et al.; 09 Jan 2011.
Notes: Cut on right portion of abdomen. DW not mentioned in Carvalho et al. (2016).
MZUSP 117806: RN04-33; one adult male, 220 mm DW; Mouth of Rio Demeni, Rio Negro, Barcelos, Amazonas, Brazil, 0°46'31.8"S, 62°56'14.28"W; depth not listed; F. Marques et al.; 26 Feb 2004.
Notes: Cut on right portion of abdomen. Skin patch removed for SEM. DW not mentioned in Carvalho et al. (2016).
MZUSP 117807: RN11-13; one adult female, 241 mm DW; Rio Negro, Barcelos, Amazonas, Brazil, 0°57'30.24"S, 62°56'14.697"W; depth: not listed; F. Marques et al.; 09 Jan 2011.
Notes: Cut on right portion of abdomen. Tail broken. Discolouration on right posterodorsal portion of disc. DW not mentioned in Carvalho et al. (2016).
MZUSP 117808: RN11-15; one adult female, 205 mm DW; Rio Negro, Barcelos, Amazonas, Brazil, 0°57'30.24"S, 62°56'14.697"W; depth not listed; F. Marques et al.; 09 Jan 2011.
Notes: Cut on the right portion of abdomen; ventral caudal stinger removed; dorsal stinger broken. Tail broken. DW not provided in Carvalho et al. (2016).
MZUSP 117810: RN11-20; one adult female, 222 mm DW; Rio Negro, Barcelos, Amazonas, Brazil, 0°57'30.24"S, 62°56'14.697"W; depth not listed; F. Marques et al.; 09 Jan 2011.
Notes: Cut on right portion of abdomen. DW not mentioned in Carvalho et al. (2016).
MZUSP 117811:RN11-06; one adult female, 234mm DW; Rio Negro, Barcelos, Amazonas, Brazil, 0°57'30.24"S, 62°56'14.697"W; depth not listed; F. Marques et al.; 09 Jan 2011.
Notes: Cut on portion of abdomen. Discolouration on posterodorsal surface of disc, with scars. Tail partially damaged. DW not mentioned in Carvalho et al. (2016).
MZUSP 117812: RN11-30; one adult male, 206 mm DW; Rio Negro, Barcelos, Amazonas, Brazil, 0°57'30.24"S, 62°56'14.697"W; depth not listed; F. Marques et al.; 09 Jan 2011.
Notes: Cut on right portion of abdomen. Desquamation on left portion of disc. Tail partially damaged. DW not mentioned in Carvalho et al. (2016).
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 322-324, DOI: 10.11646/zootaxa.5296.3.1, http://zenodo.org/record/7983829