caudomaculatus, Piabucus Vari [R. P.] 1977:2, Fig. 1 [American Museum Novitates No. 2612; ref. 7037] Río Matucare above junction with Río Mamoré at Puerto Siles, 12°49'N, 65°04'W, Dept. of Beni, Bolivia. Holotype: AMNH 32490. Paratypes: AMNH 32491 [not 32419] (1). •Valid as Piabucus caudomaculatus Vari 1977 -- (Moreira in Reis et al. 2003:173 [ref. 27061], Sarmiento et al. 2014:185 [ref. 35004], Moreira 2024:377 [ref. 40817]). Current status: Valid as Piabucus caudomaculatus Vari 1977. Iguanodectidae. Distribution: South America: Mamoré River drainage, Bolivia. Habitat: freshwater.