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Actinopterygii (ray-finned fishes) > Ophidiiformes (Cusk eels) > Bythitidae (Viviparous brotulas) > Brosmophycinae
Etymology: Diancistrus: Greek, di = two + Greek, agkistron = hook (Ref. 45335); pohnpeiensis: Named for its type locality, Pohnpei Island.. More on author: Schwarzhans, Nielsen.

Environment / Climate / Range Ecology

Marine; reef-associated; depth range 27 - 46 m (Ref. 57884). Tropical, preferred ?

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Central Pacific: apparently endemic to the Pohnpei State, Micronesia. Appears to be allopatric with Diancistrus eremitus (from Hermit and Stewart Is. And Fiji further south) and with Diancistrus mennei (from Marshall and possibly Kiribati).

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 8.2 cm SL male/unsexed; (Ref. 57884); 5.9 cm SL (female)

Short description Morphology | Morphometrics

Dorsal soft rays (total): 83-85; Anal soft rays: 66 - 69; Vertebrae: 45 - 46. The species is characterized by the following: vertebrae 11+34-35=45-46, dorsal fin rays 83-85, anal fin rays 66-69; very large eyes (>3.0% SL), D/V 6; outer pseudoclasper large, more than twice the length of inner pseudoclasper, wing-shaped, with moderately narrow base and strongly expanded tip with fleshy bulge; inner pseudoclasper joined to outer pseudoclasper anteriorly, thin, with single sharply pointed tip, slightly extending over anterior part of outer pseudoclasper; moderately broad scale patch on cheek with 5-6 scale rows on upper cheek, 2-3 scales on operculum above opercular spine (1 row); the head massive; otolith moderately slender, length to height ratio 1.9-20 (Ref. 57884).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

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. 115185)

Not Evaluated

CITES (Ref. 94142)

Not Evaluated

Threat to humans

Harmless

Human uses

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Diancistrus pohnpeiensis Schwarzhans, Møller & Nielsen, 2005