| Family: |
Sisoridae (Sisorid catfishes), subfamily: Glyptosterninae |
| Max. size: |
6.18 cm SL (male/unsexed) |
| Environment: |
demersal; freshwater |
| Distribution: |
Asia: upper reaches of the Nan River drainage, itself a tributary of the Chao Phraya River in northern Thailand. |
| Diagnosis: |
Dorsal spines (total): 0-0; Dorsal soft rays (total): 7-7; Anal soft rays: 5-5; Vertebrae: 35-36. Belongs to the Oreoglanis delacouri species group which lacks a distinct median notch on the posterior margin of the lower lip. Can be distinguished from other members of the genus by the following combination characters: maxillary barbel with pointed tip, dentary tooth patches separated by approximately one-quarter their width, tip of pectoral fin in contact with pelvic-fin origin, caudal peduncle length 13.0-15.0 % SL, caudal peduncle depth 5.2-6.6 % SL, caudal peduncle depth 2.15-2.86 times in its length, and a lunate caudal fin with upper and lower first principal rays of approximately equal length (Ref. 83406).
Description: Dorsal fin rays i,5,i or i,6; anal fin rays i,4; pectoral fin rays i,18 or i,19; pelvic fin rays i,5. Caudal fin lunate. Paired fins greatly enlarged, forming ovoid adhesive disc with body (Ref. 83406). |
| Biology: |
Occurs in rocky, fast-flowing streams (Ref. 83406). |
| IUCN Red List Status: |
Data deficient (DD); Date assessed: 19 January 2011 Ref. (130435)
|
| Threat to humans: |
harmless |
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