Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Ophidiiformes
(Cusk eels) > Bythitidae
(Viviparous brotulas) > Brosmophycinae
Etymology: Diancistrus: Greek, di = two + Greek, agkistron = hook (Ref. 45335); mennei: Named for Tammes Menne, Copenhagen Denmark. More on authors: Schwarzhans, Møller & Nielsen.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated. Tropical
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)
Morphology | Morphometrics
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. 120744)
CITES (Ref. 118484)
Threat to humans
CountriesFAO areasEcosystemsOccurrencesIntroductionsStocksEcologyDietFood itemsFood consumptionRation
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00447 (0.00178 - 0.01122), b=3.10 (2.87 - 3.33), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.3 ±0.5 se; Based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (15 of 100) .