File:Fishes from first order streams of lower Paranapanema and Ivaí rivers.png

English: A collection of several different species of fishes that have been collected from streams in the upper Paraná River basin. Reading from left-to-right and then top-to bottom, the species are identified as:

A) Astyanax altiparanae, NUP 7302, 61.5 mm SL, B) Astyanax aff. paranae, NUP 6451, 43.2 mm SL, C) Characidium aff. zebra, NUP 6071, 53.2 mm SL, D) Crenicichla britskii, NUP 7604, 36.7 mm SL, E) Phalloceros harpagos, male, NUP 12430, 20.5 mm SL, F) Phalloceros harpagos, female, NUP 6074, 28.3 mm SL, G) Melanorivulus apiamici, NUP 6060, 30 mm SL, H) Gymnotus inaequilabiatus, NUP 7607, 104.8 mm TL, I) Callichthys callichthys, NUP 6122, 71.3 mm SL, J) Trichomycterus sp., NUP 6069, 53.7 mm SL, K) Synbranchus marmoratus, NUP 13261, 182.5 mm TL.

(Photographs by Luiz Fernando Tencatt).