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Trogloglanis

Trogloglanis pattersoni Eigenmann 1919

Toothless Blindcat

Larry Page
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Containing group: Ictaluridae

Identification

The Toothless Blindcat lacks eyes and jaw teeth, and is pinkish white. The lips are thin at the corner of the mouth and the short, lower jaw is curved upward into the mouth. The snout overhangs the mouth. The gill membranes are fused with a barely visible fold between them. The head and snout are rounded in profile. There is a long, high adipose fin joined to the caudal fin. The anal fin is short and rounded with 16-17 rays. The edge of the caudal fin is straight or slightly notched. There are well developed lateral-line canals and pores on the head. The Toothless Blindcat lacks an air bladder. To 4 in. (10.4 cm) total length.

Range & Habitat

Like the Widemouth Blindcat, Satan eurystomus, the Toothless Blindcat lives in the San Antonio Pool of the Edwards Aquifer in and near San Antonio in Bexar County, Texas, and is thought to be common.

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Distribution of Satan eurystomus and Trigloglanis pattersoni. © Larry Page

Similar Species

The other blind catfish in Texas, the Widemouth Blindcat, Satan eurystomus, has jaw teeth, separate gill membranes, and 19-20 anal rays, and the lower jaw is not curved upward into the mouth.

Other Names for Trogloglanis pattersoni Eigenmann 1919

Title Illustrations
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Scientific Name Trogloglanis pattersoni
Location artesian well in San Antonio, TX
Specimen Condition Dead Specimen
Copyright © Garold W. Sneegas
About This Page

Larry Page
Florida Museum of Natural History, Gainesville, Florida, USA

Correspondence regarding this page should be directed to Griffin Sheehy at and Larry Page at

All Rights Reserved.

Citing this page:

Page, Larry. 2007. Trogloglanis. Trogloglanis pattersoni Eigenmann 1919. Toothless Blindcat. Version 23 May 2007 (under construction). http://tolweb.org/Trogloglanis_pattersoni/69910/2007.05.23 in The Tree of Life Web Project, http://tolweb.org/

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