Under Construction

Hoplomyzon Myers 1942

John P. Friel
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Containing group: Aspredinidae


This genus is distributed in the Lago Maracaibo, Orinoco, Amazon basins.



A genus of small, armored banjo-catfishes (up to mm 32 mm SL) distinguished from all other aspredinids by the following characters: each premaxilla with two bony knobs superficially covered by fleshy papillae; dorsal and ventral armor plates do not overlap; and 2-3 sets of paired pre-anal-fin plates. Other characters not unique to this taxon but useful for identification include: maxillary barbel adnate with head and pectoral spine less than 25% of standard length.


Friel, J. 1994. A phylogenetic study of the Neotropical banjo catfishes (Teleostei: Siluriformes: Aspredinidae) Ph.D. thesis, Duke University, Durham, NC, 256 pp.

Myers, G. S. 1942. Studies on South American fresh-water fishes I. Stanford Ichthyological Bulletin, 2(4): 89-114.

Stewart, D. J. 1985. A review of the South American catfish tribe Hoplomyzontini (Pisces, Aspredinidae), with descriptions of new species from Ecuador. Fieldiana, New Series, No. 25(1360):1-19.

Taphorn, D. C., & Marrero, C. 1990. Hoplomyzon sexpapilostoma, a new species of Venezuelan catfish (Pisces: Aspredinidae), with comments on the Hoplomyzontini. Fieldiana, Zoology, n.s. 61: 1-9.

Title Illustrations
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Scientific Name Hoplomyzon atrizona
Image Use creative commons This media file is licensed under the Creative Commons Attribution-NonCommercial License - Version 3.0.
Copyright © 1995 John P. Friel
About This Page

John P. Friel
Cornell University Museum of Vertebrates, Ithaca, New York, USA

Page: Tree of Life Hoplomyzon Myers 1942. Authored by John P. Friel. The TEXT of this page is licensed under the Creative Commons Attribution License - Version 3.0. Note that images and other media featured on this page are each governed by their own license, and they may or may not be available for reuse. Click on an image or a media link to access the media data window, which provides the relevant licensing information. For the general terms and conditions of ToL material reuse and redistribution, please see the Tree of Life Copyright Policies.

Citing this page:

Friel, John P. 2000. Hoplomyzon Myers 1942. Version 14 April 2000 (under construction). http://tolweb.org/Hoplomyzon/15270/2000.04.14 in The Tree of Life Web Project, http://tolweb.org/

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