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Scientific Name Tympanopleura atronasus  (Eigenmann & Eigenmann, 1888)
Common Name
Type Locality South America ("exact locality unknown").
Synonym(s) Ageneiosus atronasus, Ageneiosus melanopogon, Tympanopleura nigricollis
Etymology Transliterated from the Greek tympanon, meaning drum, and pleura, meaning side or rib (pleuron), nouns in apposition, in reference to the pseudotympanum. The specific epithet is derived from the Latin ater (neuter atrum), meaning black, and nasus, the nose, in reference to the intense black pigmentation on the tip of the snout and lips in live and freshly preserved specimens.
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Size 120mm or 4.7" SL. Find near, nearer or same sized spp.
Identification Both Tympanopleura and Ageneiosus do not have obvious, permanent barbles. The two genera can be externally distinguished in that Tympanopleura has a prominent pseudotympanum consisting of an area on the side of the body devoid of epaxial musculature where the gas bladder contacts the internal coelomic wall; are shorter, blunter headed without greatly elongated jaws; and have a smaller adult body size.
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Distribution South America: Middle and upper Amazon River basin.
IUCN Red List Category Least Concern, range map and more is available on the IUCN species page. Last assessed 2020.
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Breeding Unreported in the aquarium.
Breeding Reports There is no breeding report.
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Reference Proceedings of the California Academy of Sciences (Series 2) v. 1 (pt 2), pp 149.
Registered Keepers There is no registered keeper.
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Last Update 2020 Oct 08 11:51 (species record created: 2012 Aug 14 12:35)