Sewellia diardi Roberts, 1998
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Family:  Balitoridae (River loaches)
Max. size:  7.18 cm SL (male/unsexed)
Environment:  demersal
Distribution:  Asia: Se Kong watershed, the southern-most large tributary of Mekong in Laos.
Diagnosis:  Vertebrae: 35-36. Differs from members of the genus by the following combination of characters: absence of dark stripes on body; absence of bold concentric bands on posterior part of paired fins; pelvic fin not reaching anal-fin origin; general appearance robust, body width at dorsal-fin origin 24.2-28.0% SL; caudal peduncle depth 10.7-11.2% SL; caudal peduncle length 0.8-0.9 times in its depth; predorsal body length 51.3-53.7% SL; pelvic-fin origin in front of dorsal-fin origin; absence of cavity around mouth; skin-fold between oropectoral membrane and ventral surface of head running from pectoral-fin origin to second rostral barbel; tubercles on dorsal part of head concentrated on lateral part of snout; absence of large tubercles on branched pectoral-fin rays 15-21; and 60-70 lateral line scales (Ref. 40433).
Biology:  Inhabits hill streams. Occurs sympatrically with S. speciosa.
IUCN Red List Status: Data deficient (DD); Date assessed: 19 February 2011 Ref. (120744)
Threat to humans:  harmless
Country info:   
 

Entered by: Torres, Armi G. - 03.06.01
Modified by: Bailly, Nicolas - 31.10.12

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