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Gobiiformes (Gobies) >
Gobiidae (Gobies) > Sicydiinae
Etymology: Sicyopterus: Greek, sika, sikya = cucumber + Greek, pteron = wing, fin (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; demersal. Tropical
Oceania: endemic to the Marquesas Islands. Type locality: Hiva Oa, Atuona River.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 9.9 cm SL male/unsexed; (Ref. 12767)
Short description
Identification keys | Morphology | Morphometrics
Characterised by a superior lip edge slightly nothched in between the three notches which are not very marked; a black line in between the middle of the eye and the grin; tiny scales on the anterior part of the body and the nape; 66 to 70 lateral scale rows; a black oval spot at the base of the caudal rays and at the tip of the caudal fin in male.
Head rounded; snout profile clearly convex; maxilla reaching or almost reaching the anterior edge of the eye. Superior lip with a median notch and a lateral one on each side at the nostril level; edge of the lip very finely notched. Two close dorsal fins, the third spine of the first dorsal is elongated, especially in males; pelvic fins joint in one oval disc, free from the abdomen, at the back of the pelvic plate (Ref. 12767).
Body shape (shape guide): fusiform / normal.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Maugé, L.A., G. Marquet and P. Laboute, 1992. Les sicydiinae (Gobiidae) des eaux douces de la Polynésie française. Description de trois espèces nouvelles. Cybium 16(3):213-231. (Ref. 12767)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
Human uses
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