Longfin fairygoby (Tryssogobius longipes) is a ray-finned fish. It inhabits marine (saltwater) waters in reef-associated environments. This species can reach a maximum total length of 2.1 cm. It occurs at depths between 20 and 35 metres. With a trophic level of 3.1, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Data Deficient on the IUCN Red List.
Dorsal spines (total): 7; Dorsal soft rays (total): 11; Anal spines: 0 - 1; Anal soft rays: 13 - 14. Grey with a yellow to orange lateral stripe, which may form a dark spot under the eye; black spot in the first dorsal fin ; characterized further by having blue and yellow basal stripes on dorsal and anal fins; caudal fin with blue and yellow streaks/bands; pelvic fins white; third and fourth dorsal spines elongate in males; pointed caudal fin in adults; longitudinal scale series 27-28; cheek with a single row of large scales; opercle covered by 2-3 large scales; predorsal scales extending to mid-interorbital; fused pelvic fins, forms cup-shaped disc; depth of body 5.0-7.0 in SL .: fusiform / normal.
Behavioural data for Longfin fairygoby is currently being reviewed.
Diet information for Longfin fairygoby is currently being compiled.
Reproduction data for Longfin fairygoby is currently being compiled.
Marine; reef-associated; depth range 20 - 35 m . Tropical Central Pacific: Indonesia and Papua New Guinea.
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