Xiphophorus birchmanni
(Lechner & Radda, 1987)
Family
Poeciliidae
Genus
Xiphophorus
Curator
Juan Miguel Artigas Azas
Published:
20-Apr-2026
Last updated on:
20-Apr-2026
Male at Cuicuilco
Male of Xiphophorus birchmanni at Cuicuilco, Panuco drainage [Hidalgo]. Photo by Juan Miguel Artigas Azas. (10-May-2019). determiner Juan Miguel Artigas Azas
Family
Poeciliidae
Curator
Juan Miguel Artigas Azas
Last updated on:
20-Apr-2026
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Abstract: This profile presents a comprehensive overview of Xiphophorus birchmanni, a small livebearing fish endemic to eastern Mexico and restricted to the Río Pánuco basin. It examines the species’ morphology, sexual dimorphism, and distinctive lack of a true sword, as well as its ecological preferences for fast-flowing, rocky freshwater habitats. The account details its distribution, habitat use, feeding behavior, and reproductive biology within a social and chemically mediated environment. Particular attention is given to its complex taxonomic history and its central role in studies of hybridization with related species. Conservation aspects are also addressed, highlighting a generally stable status alongside localized environmental pressures.

ZooBank:56212C69-49B6-44A6-BDCF-8E6272DDF492.

Original description as Xiphophorus montezumae birchmanni:

Lechner, P & A.C. Radda. 1987. "Revision des Xiphophorus montezumae/cortezi - Komplexes und Neubeschreibung einer Subspezies". Aquaria: Vivaristische Fachzeitschrift für die Schweiz und Österreich. 34(12):189-196 - [abstract] · (ffm00049)