Sewellia albisuera Freyhof, 2003
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Family:  Gastromyzontidae (Hillstream loaches)
Max. size:  6.4 cm SL (male/unsexed)
Environment:  demersal; freshwater
Distribution:  Asia: Viet Nam.
Diagnosis:  Dorsal soft rays (total): 11-11; Anal soft rays: 6-6; Vertebrae: 31-32. Dorsum of head, body and paired fin bases with whitish reticulated or whitish spotted pattern; faint dark grey axial stripe covering three scale rows; skin around lateral line pores whitish; posterior part of pectoral fin with 5-7 faint annular bands; 20-21 branched pelvic fin rays; 49-54+2 lateral line scales; pelvic fin origin below dorsal fin origin; pectoral fin origin posterior to corner of mouth; pelvic fin reaching anal fin origin; small soft elevated patches of fine tubercles on first pectoral fin rays in males; tubercles on simple pectoral fin ray not enlarged; absence of cavity around mouth and absence of skin-fold between oropectoral membrane and ventral surface of head (Ref. 51729).
Biology:  Inhabits rocky rapids and deep pools over sandy substrates. Also found in rocky pools isolated from the main river.
IUCN Red List Status: Critically Endangered (CR); Date assessed: 04 September 2010 (A2c+3c; B1b(i,ii)) Ref. (123251)
Threat to humans:  harmless
Country info:   

Entered by: Torres, Armi G. - 22.07.04
Modified by: Bailly, Nicolas - 31.10.12

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