Illustrations of structures from Leporellus vittatus, an Amazonian fish from the Anostomidae (ray-finned) family in the order Characiformes. The illustrations were created for the identification and characterization of the species.  From research by Brian Sidlauskus and Richard Vari, 2008. Phylogenetic relationships within the South American fish family Anostomidae (Teleostei, Ostariophysi, Characiformes). Zool. J. Linn. Soc. 154(1): 70–210.  PDF of Sidlauskas & Vari, 2008

Weberian apparatus

Gill arches

Jaws

Anterior neurocranium