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); springeri: Named for Victor Springer, Washington, USA.. More on author: Schwarzhans, Nielsen.
Environment / Climate / Range
Marine; reef-associated; depth range 8 - 20 m (Ref. 90102). Tropical, preferred ?; 12°N - 8°S, 121°E - 122°E
Western Pacific: Indonesia to the Philippines.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.2 cm SL male/unsexed; (Ref. 57884); 4.8 cm SL (female)
Morphology | Morphometrics
soft rays: 67 - 71;
Vertebrae: 44 - 45. The species is characterized by the following: vertebrae 11+33-34=44-45, dorsal fin rays 78-84, anal fin rays 62-71; large eyes (2.9-3.8% SL); outer pseudoclasper short, only slightly longer than inner pseudoclasper, stick-shaped, slightly anteriorly inclined; inner pseudoclasper joined to outer pseudoclasper by a thin ligament, thin, spiny, strongly forwardly inclined, anteriorly connected by thin ligament to isthmus between pseudoclaspers; broad scale patch on cheek with 5-6 scale rows on upper cheek, large scale patch on operculum above opercular spine with 7-8 scales in 2-3 rows; head slender; otolith length to height ratio about 1.9 (Ref. 57884).
Solitary inhabitant of coral reef crevices between about 8-20 m, 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. 109396)
CITES (Ref. 94142)
Threat to humans
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 (10 of 100) .