Isis Goby

Characterized by semi-transparent green or pale yellow head and body, lower head and body bright iridescent green; presence of nine reddish to brownish orange internal bars extending dorsally from vertebral column; three indistinct brownish orange bars across peritoneum; 7-8 narrow internal bars ventrally from vertebral column; lower caudal fin base and peduncle sometimes with yellow orange blotch; 2-4 lowermost pectoral rays unbranched and thickened distally; longitudinal scale series 34-51; short and cup-like pelvic fins, fleshy lobes and frenum; opening of gill usually reaching to below rear edge of eye (Ref. 90102).

Amphidromous. Refers to fishes that regularly migrate between freshwater and the sea (in both directions), but not for the purpose of breeding, as in anadromous and catadromous species. Sub-division of diadromous. Migrations should be cyclical and predictable and cover more than 100 km.Characteristic elements in amphidromy are: reproduction in fresh water, passage to sea by newly hatched larvae, a period of feeding and growing at sea usually a few months long, return to fresh water of well-grown juveniles, a further period of feeding and growing in fresh water, followed by reproduction there (Ref. 82692).

Dorsal spines (total): 7; Dorsal soft rays (total): 8; Analspines: 1; Analsoft rays: 8 - 9

Found on gorgonians, commensal (Ref. 43239). Exclusively associated with Isis hippuris in 1-15 m (Ref 90102).