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your internet guide to all things catfish
Listrura nematopteryx de Pinna, 1988 |
Image contributors to this species: |
Ivan Sazima (1) |
ScotCat Sources: |
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Other Sources: |
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Relevant Information: |
Description: Differs from congeners in having one pectoral fin ray. Pectoral, dorsal and anal fin rays unbranched; 31-35 dorsal procurrent caudal fin rays, 28-32 ventral procurrent caudal fin rays; 14-19 premaxillary teeth; 13-18 dentary teeth. Etymology: The genus name Listrura: listron, shovel; ourá, tail, referring to numerous accessory rays on tail, which make the caudal region shovel-shaped. The specific name nematopteryx: nematos, threaded; ptéryx, wing or fin, referring to its extremely narrow, one-rayed, filamentous pectoral fin. |
Common Name: |
None |
Synonyms: |
None |
Family: |
Trichomycteridae |
Distribution: |
South America: Estrela River basin in Rio de Janeiro State and Picinguaba, São Paulo State, Brazil. |
Size: |
3.5cm. (1½ins) |
Temp: |
25-28°c (77-83°f.) |
p.H. |
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6.0-7.0. |
IUCN Red List |
Listrura nematopteryx occurs in the Estrela River basin, municipality of Magé, state of Rio de Janeiro. The species is known only from micro-habitats consisting of unconsolidated substrate, with running water and vegetation. Recent collection efforts in the region have not revealed new subpopulations. The species has been recorded in only two locations, and its type locality has been severely degraded, with this subpopulation considered extinct. Its known area of occupancy (AOO) was calculated at 4 km², and the number of locations is one. Intense urbanisation compromises habitat quality. Thus, Listrura nematopteryx has been listed as Critically Endangered (CR), (IUCN 2021). |
Reference: |
de Pínna, M.C.C.
and W. Wosiacki, 2003. Trichomycteridae (pencil
or parasitic catfishes). p. 270-290. In R.E. Reis,
S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist
of the Freshwater Fishes of South and Central America.
Porto Alegre: EDIPUCRS, Brasil. |
Family: Trichomycteridae Back to Ident-A-Cat Click on Thumbnails |
Listrura
nematopteryx |
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