RYBY: Katalog wszystkich słodkowodnych ryb Meksyku.

Species found in ecoregion Upper Usumacinta (list probably incomplete)

Mexico

aenigmaticum, Ophisternon
alvarezi, Atherinella
anale, Dorosoma
argenteus, Maskaheros
belizanus, Belonesox
bimaculatus, Pseudoxiphophorus
compressus, Hyphessobrycon
ctenolepis, Xenodexia
fairweatheri, Phallichthys
goldmani, Batrachoides
guatemalensis, Brycon
helleri, Thorichthys
hellerii, Xiphophorus
heterospila, Oscura
hubbsi, Strongylura
intermedium, Chuco
irregularis, Theraps
kidderi, Carlhubbsia
laticauda, Rhamdia
lentiginosus, Rheoheros
maculatus, Xiphophorus
managuensis, Parachromis
meeki, Thorichthys
melanurus, Vieja
mexicana, Poecilia
mexicanus, Diapterus
multifasciatus, Parachromis
nourissati, Wajpamheros
ocotal, Rocio
octofasciata, Rocio
pearsei, Cincelichthys
petenense, Dorosoma
petenensis, Poecilia
robertsoni, Cribroheros
salvini, Trichromis
sexradiata, Gambusia
splendida, Petenia
urophthalmus, Mayaheros
yucatana, Gambusia