Supplementary material 2 from: Terán GE, Méndez-López A, Benitez MF, Serra WS, Bogan S, Aguilera G (2024) Re-description of Xyliphius barbatus (Siluriformes, Aspredinidae), with comments on osteology and distribution. Zoosystematics and Evolution 100(3): 1085-1097. https://doi.org/10.3897/zse.100.121396

Comparative material examined