Tryssogobius nigrolineatus Randall, 2006
Deepreef fairygoby
Tryssogobius nigrolineatus
photo by Allen, G.R.

Family:  Gobiidae (Gobies), subfamily: Gobiinae
Max. size:  2.9 cm SL (male/unsexed)
Environment:  demersal; marine; depth range 73 - 110 m
Distribution:  Western Pacific: Ryukyu Is., Fiji and Indonesia.
Diagnosis:  Dorsal spines (total): 7-7; Dorsal soft rays (total): 10-10; Anal spines: 1-1; Anal soft rays: 11-11; Vertebrae: 26-26. This species is characterized by the following: D VI + I, 10; A I, 11; pectoral rays 18-20; diameter of eye 2.4-2.7 in HL; narrow interorbital width, 6.7-8.15 in HL; first 3 dorsal spines subequal, the longest 2.4-3.65 in SL; caudal fin rhomboid, 2.6-3.5 in SL; pectoral fins 3.4-3.6 in SL; colour light grey with a midlateral blackish line from behind eye to posterior caudal peduncle; blackish first dorsal spine, a yellow line at base of fin; second dorsal and caudal fins with 2 rows of yellow spots, anal fin with 1 row; yellow line in middle of caudal fin (Ref. 75950).
Biology:  Inhabits sand and rubble bottoms of outer reef slopes in 50-110 m (Ref. 90102). All specimens were collected by handnets from at depths of 73-110 m off Viti Levu, while diving with mixed-gas rebreather gear (Ref. 75950).
IUCN Red List Status: Not Evaluated (N.E.) Ref. (130435)
Threat to humans:  harmless
Country info:  Type locality, Patch reef, southern wall, off Suva Harbour, Viti Levu, BPBM 39986 (holotype of Tryssogobius nigrolineatus, 2.71 cm SL, male). All specimens were collected by handnets from at depths of 73-110 m off Viti Levu, while diving with mixed-gas rebreather gear (Ref. 75950).


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