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Ouachita Madtom
Noturus lachneri
The Ouachita madtom (Noturus lachneri) is a catfish of the family Ictaluridae. The first specimens of the species were collected in 1952, but it was not until 1969 that they were formally described as a species. The Ouachita madtom is similar to the tadpole madtom (N. gyrinus) except the it has one internasal pore while the tadpole madtom has two, and 16 to 18 anal rays while the tadpole madtom has only 14 to 16. The Ouachita madtom is also similar to the slender madtom (N. exilis) but differing in the lack of serrae on the pectoral spine, having more caudal rays, and usually eight pectoral rays while the slender madtom has 9. The maximum length of an Ouachita madtom is about 4 inches (10 cm).
From the article Ouachita madtom on Wikipedia (CC BY-SA), quoted section by section
Range & habitat
The Ouachita madtom is found only in the upper forks of the Saline River (Ouachita River) system and in one tributary of the Ouachita River in Central Arkansas, United States. A usual inhabitant of clear, small to medium, gravel-bottomed streams, the Ouachita madtom has been found in extremely shallow areas of the Saline River. It also is found in quiet backwaters under large rocks.
Wikipedia: “Distribution and habitat”
What it does
Little is known about the Ouachita madtom's reproduction. However, on August 1, 1980, six Ouachita madtoms were collected in a stream only 3.9 feet (1.2 m) across. The six specimens were obviously young-of-the-year, and their presence raised speculations that Ouachita madtoms seek smaller streams during summer months to spawn.
Wikipedia: “Reproduction”
At the table
The Ouachia madtom starts feeding around 20 to 90 minutes after sunset. The following are known sources of food:
Ephemeropterans Dipterans Coleopterans Trichopterans Isopods Copepods Gastropods
Wikipedia: “Known food sources”
Where it lives
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Noturus lachneri in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 107288.