Plesiotrygon iwamae Rosa, Castello & Thorson, 1987

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 : 325

Plesiotrygon iwamae Rosa, Castello & Thorson, 1987

Holotype: MZUSP 10153 ; adult male, 551 mm DW (cited as 579 mm DW in Rosa et al., 1987) ( Fig. 21 ); Lago Janauacá and surroundings, Amazonas, Brazil; depth not listed; H. Britski; 3 Oct 1981.

Notes: Specimen with tail severed, kept attached in with plastic zip lock. Location on storage tag mentions “Rio Solimıes, above Rio Tefé”, thus the type-locality is possibly incorrect.

Paratype: MZUSP 14789 ; one juvenile male, 205 mm DW (approximately the same DW as cited in Rosa et al., 1987); Lago Janauacá and surroundings, Amazonas, Brazil; depth not listed; Alpha Helix Amazon Expedition; Jan 1977 /

Notes: Eyes removed. Skin removed in some portions. Tail broken. Location on storage tag mentions “Rio Solimıes”.

Figures

FIGURE 21. Holotype of Plesiotrygon iwamae (MZUSP 10153, male, 551 mm DW) in dorsal (left) and ventral (right) views.