Orange-spotted sand-goby (Fusigobius longispinus) is a ray-finned fish of the family Gobiidae. It inhabits marine (saltwater) waters in reef-associated environments. This species can reach a maximum total length of 8 cm. It occurs at depths between 9 and 25 metres. With a trophic level of 3.3, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Least Concern on the IUCN Red List.
Dorsal spines (total): 7; Dorsal soft rays (total): 9; Anal spines: 1; Anal soft rays: 7 - 8. Covered with evenly-spaced round orange spots; develops an elongate first dorsal spine with growth . Body whitish; about 4 patches on lateral side of body, triangular patch on caudal base; all fins whitish with orange spots on dorsal and caudal, Transverse scales 7. Predorsal scales 4. Head triangular in cross-section; snout short and pointed. Dorsal fin triangular in shape; in males, 1st dorsal spine elongated and extending over base of last dorsal ray when depressed; 2nd dorsal fin ray pointed posteriorly. Anal fin similar to 2nd dorsal. Pectoral fin large, extending beyond origin of anal fin. Pelvic fin cup-like with connecting membrane .: fusiform / normal.
Behavioural data for Orange-spotted sand-goby is currently being reviewed.
Diet information for Orange-spotted sand-goby is currently being compiled.
Reproduction data for Orange-spotted sand-goby is currently being compiled.
Marine; reef-associated; depth range 9 - 25 m . Tropical West Pacific: Red Sea and East Africa to the Marshall Islands, north to the Ryukyu Islands (Ref.
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