Freshwater Fishes of Mexico home page
Female in breeding coloration

Rheoheros lentiginosus © Juan Miguel Artigas Azas


The wonderful Mexican freshwater fish fauna

News

A new species of <i>Profundulus</i> is described from Oaxaca

A new species of Profundulus is described from Oaxaca — A new species of killifish in the genus Profundulus has been described in the journal Ichthyology & Herpetology 109(4):949–957 2021 by Sara E Dominguez-Cisneros, Ernesto Velázquez-Velázquez, Caleb D. McMahan, and Wilfredo A. Matamoros. The new species significantly extends the known... more

Published species profiles

Gambusia regani

Gambusia regani Hubbs, 1926 — by Juan Miguel Artigas Azas

Gambusia panuco is a junior synonym of G. regani.

Gambusia alvarezi

Gambusia alvarezi Hubbs & Springer, 1957 — by Juan Miguel Artigas Azas

Gambusia alvarezi has a minute distribution range and fragile habitat very susceptible to water level variations.

Xiphophorus continens

Xiphophorus continens Rauchenberger, Kallman & Morizot, 1990 — by Juan Miguel Artigas Azas

Males in aquaria may grow to 3 cm in standard length and 5 cm with the sword.

Hybopsis aulidion

Hybopsis aulidion (Chernoff & Miller, 1986) — by Juan Miguel Artigas Azas

Hybopsis aulidion was first reported extinct in 1965.

Xiphophorus pygmaeus

Xiphophorus pygmaeus Hubbs & Gordon, 1943 — by Juan Miguel Artigas Azas

From a member of a race of dwarves.

This site

Subscriptions to the Freshwater Fishes of Mexico using PayPal — by Juan Miguel Artigas Azas

Freshwater Fishes of Mexico offers subscriptions to people, which are administered by PayPal. The way they operate and how to cancel the renewals service are explained in this small document

Terms and conditions — by Juan Miguel Artigas Azas

Our citation standards — by Juan Miguel Artigas Azas

The standard used in the Freshwater Fishes of Mexico for citation of published works

Subscribe

Access exclusive information
19-Jun-2024, Picture: Vieja guttulata, Freshly collected adult, (John Lyons)
19-Jun-2024, Picture: Vieja guttulata, Freshly collected adult, (John Lyons)
10-Jun-2024, Picture: Ataeniobius toweri, Male in habitat, (Juan Miguel Artigas Azas)
10-Jun-2024, Picture: Ataeniobius toweri, Female in habitat, (Juan Miguel Artigas Azas)
10-Jun-2024, Picture: Ataeniobius toweri, Male in habitat, (Juan Miguel Artigas Azas)
09-Jun-2024, Picture: Astyanax mexicanus, Adult in habitat, (Juan Miguel Artigas Azas)
09-Jun-2024, Picture: Astyanax mexicanus, Adult in habitat, (Juan Miguel Artigas Azas)
08-Jun-2024, Picture: Herichthys bartoni, Adult in normal coloration, (Juan Miguel Artigas Azas)
08-Jun-2024, Picture: Herichthys bartoni, Adult in normal coloration, (Juan Miguel Artigas Azas)

more...