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); atollorum: Named for its habitat among the Micronesian atolls.. More on author: Schwarzhans, Nielsen.
Environment / Climate / Range
Marine; reef-associated; depth range 1 - 4 m (Ref. 57884). Tropical, preferred ?
Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Western Central Pacific: Micronesian atolls, eastwards to Kiribati.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 5.8 cm SL male/unsexed; (Ref. 57884)
Morphology | Morphometrics
soft rays: 56 - 61;
Vertebrae: 40 - 42. Diagnosis: Vertebrae 11+29–31=40–42, dorsal fin rays 72–76; anal fin rays 56–61; eyes small (about 2.0% SL); outer pseudoclasper deep, ear-lobe shaped, opened towards ventral; inner pseudoclasper firmly joined to outer pseudoclasper anteriorly, with supporter, forming a sharp, forward-inclined lobe; narrow scale patch on cheek, no scales on operculum; head profile slender; otolith length to height ratio >2.1 (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. 109396)
CITES (Ref. 94142)
Threat to humans
CountriesFAO areasEcosystemsOccurrencesIntroductionsStocksEcologyDietFood itemsFood consumptionRation
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties 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 (0.00172 - 0.01163), b=3.10 (2.88 - 3.32), based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.2 ±0.5 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (12 of 100) .