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Ictalurus mexicanus (Meek 1904)

Rio Verde Catfish

Containing group: Ictalurus


The Rio Verde Catfish has the dorsal spine longer than the fleshy interorbital distance, 2-3 very small serrae on the pectoral spine of the juvenile, and 20-27 anal rays. The supraoccipital spine is not in contact with supraneural.


The Rio Verde Catfish occurs in the upper Rio Gallinas drainage (Rio Panuco basin) on the Atlantic Slope of Mexico.

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Distribution of Ictalurus mexicanus © Larry Page


The Rio Verde Catfish lives over rocky or sandy substrates in quiet to moderate-flowing water of creeks and small rivers.

Similar Species

The Headwater Catfish, I. lupus, Yaqui Catfish, I. pricei, and Lerma Catfish, I. dugesii, have the dorsal spine shorter or equal in length to the fleshy interorbital distance and 5-14 large serrae on the pectoral spine of the juvenile. The Channel Catfish, I. punctatus, has 26-32 anal rays and the supraoccipital spine in contact with the supraneural.

Other Names for Ictalurus mexicanus (Meek 1904)

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Citing this page:

Tree of Life Web Project. 2007. Ictalurus mexicanus (Meek 1904). Rio Verde Catfish. Version 23 May 2007 (under construction). http://tolweb.org/Ictalurus_mexicanus/69935/2007.05.23 in The Tree of Life Web Project, http://tolweb.org/

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