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Ophidiiformes (Cusk eels) >
Dinematichthyidae (Viviparous brotula)
Etymology: Diancistrus: Greek, di = two + Greek, agkistron = hook (Ref. 45335); alatus: Name from Latin 'alatus'; meaning winged, referring to the unusually large, protruding wing-shaped outer pseudoclaspers.
More on authors: Schwarzhans, Møller & Nielsen.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; depth range 2 - 7 m (Ref. 57884). Tropical
Central Pacific: Tonga Islands.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.2 cm SL male/unsexed; (Ref. 57884)
Short description
Identification keys | Morphology | Morphometrics
Body slender, small; vertebrae 11+ 31 = 42; dorsal fin rays 79; anal fin rays 59; outer pseudoclasper large, wing-shaped, bent outwards, with flat, broad supporter; inner pseudoclasper is free, broad-based, bifurcate, its anterior branch twice as long as posterior branch extending over anterior part of outer pseudoclasper, both with rounded tip; scale patch only on cheek, no scales on operculum; otolith length to sulcus length 2.2 (Ref. 57884).
Body shape (shape guide): elongated.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Schwarzhans, W., P.R. Møller and J.G. Nielsen, 2005. Review of the Dinematichthyini (Teleostei, Bythitidae) of the Indo-West-Pacific. Part I. Diancistrus and two new genera with 26 new species. The Beagle, Records of the Museum and Art Galleries of the Northern Territory 21:73-163. (Ref. 57884)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
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