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Adult eating decaying leaf

Herichthys bartoni © Juan Miguel Artigas Azas


The wonderful Mexican freshwater fish fauna

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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

Xenodexia ctenolepis

Xenodexia ctenolepis Hubbs, 1950 — by Juan Miguel Artigas Azas

The only cyprinodontid with ctenoid scales.

Amphilophus istlanus

Amphilophus istlanus (Jordan & Snyder, 1899) — by Juan Miguel Artigas Azas

Amphilophus istlanus could be a natural hybrid between A. trimaculatus and Mayaheros beani.

Gambusia regani

Gambusia regani Hubbs, 1926 — by Juan Miguel Artigas Azas

Gambusia panuco is a junior synonym of G. regani.

Poeciliopsis hnilickai

Poeciliopsis hnilickai Meyer & Vogel, 1981 — by Juan Miguel Artigas Azas

Despite their small size, captive Poeciliopsis hnilickai should be given a large swimming space for their well being.

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.

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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

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29-Nov-2023, Species profile: Hybopsis amecae (Chernoff & Miller, 1986) (Juan Miguel Artigas Azas)
26-Nov-2023, Picture: Thorichthys callolepis, Pair in Rio Grande, (Juan Miguel Artigas Azas)
21-Aug-2023, Species profile: Gambusia alvarezi Hubbs & Springer, 1957 (Juan Miguel Artigas Azas)
21-Aug-2023, Picture: Gambusia alvarezi, Male chasing female, (Juan Miguel Artigas Azas)
21-Aug-2023, Picture: Gambusia alvarezi, Bluish female, (Juan Miguel Artigas Azas)
16-Aug-2023, Picture: Skiffia multipunctata, Female in the aquarium, (Juan Miguel Artigas Azas)
16-Aug-2023, Picture: Chirostoma mezquital, Adult in the aquarium, (Juan Miguel Artigas Azas)
12-Aug-2023, Picture: Xenotoca melanosoma, Adult male, (Juan Miguel Artigas Azas)
12-Aug-2023, Picture: Xenotoca melanosoma, Adult female, (Juan Miguel Artigas Azas)

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