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Odonteleotris macrodon (Bleeker, 1853) Gangetic sleeper |
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photo by
Wilson, D. |
| Family: | Butidae (Gudgeon gobies) | |||
| Max. size: | 27.8 cm SL (male/unsexed) | |||
| Environment: | demersal; freshwater; brackish; marine | |||
| Distribution: | Indo-West Pacific: India, Myanmar, Thailand, Malyasia, Indonesia, and questionable in Australia. | |||
| Diagnosis: | Dorsal spines (total): 7-7; Dorsal soft rays (total): 10-10; Anal spines: 1-1; Anal soft rays: 8-8. This species is distinguished from all other species of Butidae by the following set of characters: upper and lower jaws with enlarged canine teeth (5 and 12, respectively); canines are in the outermost tooth row in the upper and anterior lower jaw, while canines are placed in the inner tooth row in the posterior lower jaw; upper jaw ending below center of the eye; interorbital sensory pore D paired with wide interval; fourth infraocular transverse row of sensory papillae crossed with a longitudinal row on the cheek; longitudinal scales 103; transverse scales 32; predorsal scales 63; transverse scales at caudal peduncle 21; circumpeduncle scales 39; D VI-I,10; A I, 8; pectoral-fin rays 17; predorsal length 38.2% of SL; body depth at anal-fin origin 18.4% of SL; eye diameter 3.3% of SL. Colouration: unpaired fin rays variegated by small blackish spots; a red spot on the upper part of the caudal-fin base when fresh (Ref. 129074). | |||
| Biology: | Found in rivers and estuaries (Ref. 4833). | |||
| IUCN Red List Status: | Least Concern (LC); Date assessed: 01 June 2020 Ref. (130435) | |||
| Threat to humans: | harmless | |||