COLLECTION INDEX: List of entries of preserved specimens in the collection in the Freshwater Fishes of Mexico .
Collection index
Escuela Nacional del Ciencias Biológicas, Instituto Politécnico Nacional
Mexico city (México) [2556]
Also seen as IPN
Gambusia alvarezi Hubbs & Springer, 1957 [1, types]
Heterophallus echeagarayi (Alvarez, 1952) [8, types]
Priapella compressa Alvarez, 1948 [1, types]
Xiphophorus clemenciae Alvarez, 1959 [6, types]