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Macrognathus semiocellatus Roberts, 1986 |
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photo by
Panitvong, N. |
| Family: | Mastacembelidae (Spiny eels) | |||
| Max. size: | 19.2 cm SL (male/unsexed) | |||
| Environment: | benthopelagic; freshwater | |||
| Distribution: | Asia: Mekong, Chao Phraya and Meklong basins. | |||
| Diagnosis: | Dorsal spines (total): 28-32; Dorsal soft rays (total): 46-58; Anal soft rays: 53-65; Vertebrae: 71-75. A series of 8-10 roundish dark marks along the base of the soft dorsal fin, some or all of which are continuous with vertical bars on the posterior part of the body (Ref. 27732). Predorsal vertebrae usually only 4-5 (6 in a single specimen); rostral tooth plates absent; rim of anterior tubular nostril with 4 nearly equal digitiform processes (or 2 fimbriae and 2 fimbrules); dorsal, anal and caudal fins confluent; caudal fin pointed posteriorly (not truncate or round, typically with 5/5 or 6/6 rays; total caudal fin rays 10-13) (Ref. 39392). | |||
| Biology: | A burrower (Ref. 39392). | |||
| IUCN Red List Status: | Least Concern (LC); Date assessed: 15 March 2011 Ref. (130435) | |||
| Threat to humans: | harmless | |||
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