Ayarnangra estuarius is a species of catfish (order Siluriformes) of the family Erethistidae. It is the only member of the monotypic genus Ayarnangra.
A. estuarius is known only from large tidal rivers in the lower Ayeyarwady River. These habitats have mud or clay bottoms and strong currents that reverse direction daily. This species feeds on relatively large invertebrates such as prawns.
A. estuarius has no thoracic adhesive apparatus, a granulate anterior margin of the pectoral fin spine, a smooth to granulate anterior margin of the dorsal fin spine, a slender body shape, moderate gill openings, and a papillate upper lip. The eyes are very small, and the nostrils are much larger than the eyes. This species of fish reaches about 4.59 centimetres (1.8 in) SL.
1. ^ a b c Froese, Rainer, and Daniel Pauly, eds. (2007). "Ayarnangra estuarius" in FishBase. June 2007 version.
Source: Wikipedia, Wikispecies: All text is available under the terms of the GNU Free Documentation License