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Luciogobius ryukyuensis Chen, Suzuki & Senou, 2008 |
| Family: | Gobiidae (Gobies), subfamily: Gobionellinae | |||
| Max. size: | 4.54 cm SL (male/unsexed) | |||
| Environment: | benthopelagic; freshwater | |||
| Distribution: | Asia: Japan (probably endemic to the Ryukyu Is.). | |||
| Diagnosis: | Dorsal spines (total): 1-1; Dorsal soft rays (total): 11-11; Anal spines: 1-1; Anal soft rays: 11-11; Vertebrae: 37-37. This species is distinguished from all its congeners by the following set of characters: D1 absent; D2 I/11; A I/11; pectoral fin rays modally 16 and with one upper, very short free soft ray; vertebral count 16 + 21 = 37; head and body with many rounded light creamy white spots above creamy yellow background (Ref. 86740). | |||
| Biology: | Found among gravels at the rapids which are in the most lower reaches in the freshwater area on the river (Ref. 86740). | |||
| IUCN Red List Status: | Near Threatened (NT); Date assessed: 11 December 2018 (B2b(iii,v)) Ref. (130435) | |||
| Threat to humans: | harmless | |||