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Ponticola constructor (Nordmann, 1840) Caucasian goby |
| Family: | Gobiidae (Gobies), subfamily: Gobiinae | |||
| Max. size: | 20 cm SL (male/unsexed) | |||
| Environment: | benthopelagic; freshwater | |||
| Distribution: | Europe: western tributaries of River Kuban in northern Caucasus. Asia: coastal Black Sea drainages of southern Caucasus from Chorokh to Psyrtskha. | |||
| Diagnosis: | This species is distinguished from other related species in the Black Sea basin by the following characters: pelvic disc 40-60% of distance between its origin and anus; cycloid scales completely cover predorsal area and nape; pelvic disc fraenum with angular lobes, fraenum length 1/6-1/2 of its width at base; scales in midlateral series 58-70 + 2-4; snout length 1.5-1.9 times in eye diameter (Ref. 59043). | |||
| Biology: | Inhabits a wide variety of flowing waters from cold hill to foot hill streams; never in brackish water. No other biological data except that the males guard eggs in gravel or rock cavities (Ref.59043). | |||
| IUCN Red List Status: | Least Concern (LC); Date assessed: 01 January 2008 Ref. (130435) | |||
| Threat to humans: | harmless | |||