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Down arrow Cat-eLog Data Sheet
Scientific Name Acestridium gymnogaster  Reis & Lehmann A., 2009
Common Name
Type Locality Rio Traira, ca. 33 kilometers east of Rio Madeira onTrans-Amazon road, 7°35'33"S, 62°44'45"W, Município de Humaltá, Amazonas, Brazil.
Down arrow Species Information
Size 62mm or 2.4" SL. Find near, nearer or same sized spp.
Identification Acestridium was diagnosed by Schaefer (1991) based on the following characters: ten principal caudal-fin rays; plates at anterior snout margin forming conspicuous spatulate projection; head and body very slender, depressed; dorsal surface of head and trunk with longitudinal ridges; dorsal fin placed posteriorly, well beyond pelvic fin and just anterior to anal-fin origin; adipose fin absent; dermal plates anterior to first dorsal-fin proximal radial expanded, bearing ventromedial keel contacting the dorsal margin of the neural arches of the vertebrae six through twelve; and ridge of bone on the ventral surface of the lateral ethmoid contacting the metapterygoid channel reflected mesially.
Down arrow Habitat Information
Distribution South America: Rio Madeira basin in Brazil.
Amazon, Middle Amazon (Solimoes), Madeira (click on these areas to find other species found there)

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IUCN Red List Category Not Evaluated
Down arrow Husbandry Information
Breeding Unreported.
Breeding Reports There is no breeding report.
Down arrow Further Information
Reference Copeia 2009 (no. 3), pp 446, Figs. 1, 5C.
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Last Update 2019 Oct 13 03:22 (species record created: 2009 Sep 10 13:54)