Teleostei (teleosts) >
Ophidiiformes (Cusk eels) >
Dinematichthyidae (Viviparous brotula)
Etymology: Diancistrus: Greek, di = two + Greek, agkistron = hook (Ref. 45335); mennei: Named for Tammes Menne, Copenhagen Denmark.
Eponymy: Tammes Menne (d: 1947) was Assistant Curator and fish-collection manager at the Natural History Museum of Denmark. [...] (Ref. 128868), visit book page.
More on authors: Schwarzhans, Møller & Nielsen.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated. Tropical
Distribution
Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Central Pacific: Marshall Islands and probably Gilbert Is. (Kiribati).
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 4.8 cm SL male/unsexed; (Ref. 57884); 7.6 cm SL (female)
Short description
Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 80 - 86; Anal soft rays: 62 - 68; Vertebrae: 44 - 46. The species is characterized by the following: vertebrae 11+34=45, dorsal fin rays 88, anal fin rays 69; large eyes (3.4% SL), D/V 6; outer pseudoclasper moderately large, short (about 1 ½ length of inner pseudoclasper), wing-shaped, flat with broad base; inner pseudoclasper joined to outer pseudoclasper anteriorly, with thin, sharp, slightly anteriorly directed single-pointed tip extending over anterior part of outer pseudoclasper; moderately broad scale patch on cheek with 5 scale rows on upper cheek, large scale patch on operculum above opercular spine (8 scales); head is broad, rather flat dorsally; otolith slender, length to height ratio 2.2 (Ref. 57884).
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
Tools
Special reports
Download XML
Internet sources
Estimates based on models
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 mennei (Menne\](/images/thumbnails/gif/tn_Dimen_m0.gif "Image of Diancistrus mennei (Menne\")
