| Family: |
Gobiidae (Gobies), subfamily: Gobionellinae |
| Max. size: |
3.29 cm SL (male/unsexed); 3.64 cm SL (female) |
| Environment: |
demersal; freshwater |
| Distribution: |
Asia: Warashina River, a tributary of the Abe River System in Japan. |
| Diagnosis: |
Dorsal soft rays (total): 8-10; Anal spines: 1-1; Anal soft rays: 8-10; Vertebrae: 31-33. Diagnosed from all other species of Luciogobius by having the following combination of characters: eye small and degenerated, embedded beneath skin, obscured after fixation; body naked, without scales; dermal ridge on cheek lacking barbels; second dorsal-fin origin slightly anterior to anal fin; pelvic fin present; no free soft rays on upper and lower ends of pectoral fin; second dorsal-fin rays modally I,9; anal-fin rays modally I,9; branched caudal-fin rays modally 8+7; vertebrae modally 16+16=32; interorbit region flat; maximum width of head at cheek 11.5% in SL; upper jaw length 8.5% in SL; 37.4% in head length; predorsal length 307.4% in head length; and preanal length 315.8% in head length (Ref. 86963). |
| Biology: |
Found in the middle reaches of river on a gravel substrate composed of pebbles of 3-5 cm in diameter and containing less than 5% of sand, where freshwater springs flow from between the pebbles (Ref. 86963). |
| IUCN Red List Status: |
Data deficient (DD); Date assessed: 23 July 2018 Ref. (130435)
|
| Threat to humans: |
harmless |
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