Ouachita MadtomLarry Page
The Ouachita Madtom is similar to the Tadpole Madtom, Noturus gyrinus, but can be distinguished by its shorter, flatter head and its more slender body. The body is tan, dark gray or brown above and white below. The fins sometimes have dark borders. To 4 in. (10 cm) total length.
The Ouachita Madtom is found in the upper Saline River system and in an adjacent small tributary of the Ouachita River in central Arkansas. This species is uncommon.
Distribution of Noturus lachneri. © Larry Page
The Tadpole Madtom, Noturus gyrinus, has a longer and more rounded head, and a chubbier body.
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Florida Museum of Natural History, Gainesville, Florida, USA
Correspondence regarding this page should be directed to Larry Page at and Griffin Sheehy at
Page copyright © 2007 Larry Page
All Rights Reserved.
- First online 23 May 2007
- Content changed 23 May 2007
Citing this page:
Page, Larry. 2007. Noturus lachneri http://tolweb.org/Noturus_lachneri/69906/2007.05.23 in The Tree of Life Web Project, http://tolweb.org/. Ouachita Madtom. Version 23 May 2007 (under construction).