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Teleostei (teleosts) > Ophidiiformes (Cusk eels) > Dinematichthyidae (Viviparous brotula)
Etymology: Diancistrus: Greek, di = two + Greek, agkistron = hook (Ref. 45335); beateae: Named for Beate Schwarzhans..
More on authors: Schwarzhans, Møller & Nielsen.

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; reef-associated; depth range 0 - 38 m (Ref. 90102), usually 0 - 15 m (Ref. 90102). Tropical

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Pacific Ocean: Micronesia, Indonesia, New Guinea, Solomons, Vanuatu Is., Fiji, Samoa, and Australia.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 14.9 cm TL male/unsexed; (Ref. 57884); 13.2 cm SL (female)

Short description Identification keys | Morphology | Morphometrics

Dorsal soft rays (total): 84 - 91; Anal soft rays: 65 - 74; Vertebrae: 44 - 46. Diagnosis: Vertebrae 11+33-35=44-46, dorsal fin rays 84-91, anal fin rays 65-74; eyes large (2.6-3.5% SL); outer pseudoclasper massive, hook-shaped, very broad in ventral view; inner pseudoclasper stout, fleshy, not extending over anterior rim of outer pseudoclasper; broad scale patch on cheek, large scale patch on operculum continuous above and below opercular spine (Ref. 57884).

Maximum length of 14.9 cm TL. Solitary inhabitant of coral reef crevices, cryptic (Ref 90102). Maximum length for female 13.2 SL (Ref 57884).

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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. 130435)

Least Concern (LC) ; Date assessed: 16 August 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: of no interest

FAO - Publication: search | FishSource |

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Estimates based on models

Preferred temperature (Ref. 123201): 26.4 - 29.3, mean 28.6 °C (based on 1326 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.4 ±0.6 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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Diancistrus beateae Schwarzhans, Møller & Nielsen, 2005