Teleostei (teleosts) >
Ophidiiformes (Cusk eels) >
Dinematichthyidae (Viviparous brotula)
Etymology: Diancistrus: Greek, di = two + Greek, agkistron = hook (Ref. 45335); karinae: Named for Karin Bloch, wife of Jørgen Nielsen..
More on authors: Schwarzhans, Møller & Nielsen.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; benthopelagic; depth range 0 - 16 m (Ref. 57884). Tropical
Western Central Pacific: from the Philippines to the northern tip of Sulawesi (Indonesia) in the west and the oceanic islands of Palau, Pohnpei (Micronesia) and Hermit (PNG) islands in the east.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 7.5 cm SL male/unsexed; (Ref. 57884); 8.2 cm SL (female)
Short description
Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 78 - 83; Anal soft rays: 61 - 68; Vertebrae: 43 - 46. This species is characterized by the following: Vertebrae 11-12+32-35=43-46, dorsal fin rays 78-83, anal fin rays 61-68; very large eyes (2.7-3.8% SL), D/V 7; outer pseudoclasper large, about 1 1/2 length of inner pseudoclasper, wing-shaped, flat and its posterior part strongly bent backward; inner pseudoclasper joined to outer pseudoclasper anteriorly, long, single-pointed tip strongly extending over anterior part of inner pseudoclasper; scale patch on cheek with 5-6 scale rows on upper cheek, large scale patch on operculum continuous above and below opercular spine; head high, usually high-necked; otolith length to height ratio 2.0-2.1 (Ref. 57884).
Solitary inhabitant of coral reef crevices to at least 16 m depth, cryptic (Ref 90102).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | 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)
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): 28.4 - 29.3, mean 28.9 °C (based on 944 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).
![Image of Diancistrus karinae (Karin\](/images/thumbnails/gif/tn_Dikar_m0.gif "Image of Diancistrus karinae (Karin\")
