Teleostei (teleosts) >
Ophidiiformes (Cusk eels) >
Dinematichthyidae (Viviparous brotula)
Etymology: Diancistrus: Greek, di = two + Greek, agkistron = hook (Ref. 45335); eremitus: Named for the type locality's Latin translation, 'eremitus' for Hermit.
More on authors: Schwarzhans, Møller & Nielsen.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; pelagic-neritic; depth range 0 - 16 m (Ref. 57884). Tropical
Western Central Pacific: New Guinea-Solomon Island chain; off western Fiji.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 8.3 cm SL male/unsexed; (Ref. 57884)
Short description
Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 83 - 86; Anal soft rays: 66 - 71; Vertebrae: 42 - 44. The species is characterized by the following: vertebrae 11+31-33=42-44, dorsal fin rays 83-86, anal fin rays 66-71; eyes very large (?3.0% SL), D/V 5-6; the outer pseudoclasper is large, more than 2 times the length of inner pseudoclasper, wing-shaped, with broad base and slightly concave pointed tip without a fleshy bulge; inner pseudoclasper joined to outer pseudoclasper anteriorly, thin, with single pointed tip, short, not extending over anterior part of outer pseudoclasper; moderately broad scale patch on cheek with 5-6 scale rows on upper cheek, small scale patch on operculum above opercular spine (4-5 scales in 2 rows); head massive; otolith moderately slender, length to height 1.9-2.0 (Ref. 57884).
Solitary inhabitant of coral reef crevices, cryptic (Ref 90102).
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 2024-1)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
Tools
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Internet sources
Estimates based on models
Preferred temperature (Ref.
123201): 26.7 - 29.3, mean 28.7 °C (based on 665 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 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): 3.3 ±0.5 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
