A New Species of Hypomasticus (Characiformes: Anostomidae) from the Vila Nova River, State of Amapá, Brazil

Ian Solon Bortoloci Ito, Cecile de Souza Gama, Mark Henry Sabaj, and José Luís Olivan Birindelli

Ichthyology & Herpetology 114: 507–519

Supplementary Figure 1. Gonads of Hypomasticus rectangulatus, new species, specimen; MZUEL 21574, 182 mm SL.