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: Ungusurculus: Name from Latin words 'ungulus' (= claw) and 'surculus' (= grapevine tendril), refers to the functional analogy with the pseudoclaspers and the specific shape of the inner pseudoclasper.; collettei: Named for Bruce B. Collette, USNM, Washington D.C.
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 5 - 10 m (Ref. 90102). Tropical
Western Pacific: Indonesia. Also Papua New Guinea (Ref. 90102).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.4 cm SL male/unsexed; (Ref. 76869)
Morphology | Morphometrics
soft rays: 54 - 61;
Vertebrae: 41. This species possess the following characteristics: D 76-78, A 54-61, D/A 25-27, V in D 2.2; vertebrae 12+29=41; anterior nostril at 1/6 the distance from upper lip to aggregate distance to anterior margin of eye; 2 pairs of free pseudoclaspers, the outer pseudoclasper wing-shaped with broad base and distally widened supporter with strong anterior hook (covered by ligament), the inner one is stalked, with slightly widened base and distally bifurcate
claw-like with 2 strong outwardly directed spines; cheek with 5 scale rows on upper part and 3 rows on lower part; no upper preopercular pore; otolith compressed, its length to height is 1.8, with undivided short sulcus, its centre anterior of centre of otolith and inclined about 5°, with otolith length to sulcus length 2.25 (Ref. 76869).
Cryptic and solitary inhabitant of reef crevices to about 5-10 m (Ref 90102).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Schwarzhans, W. and P.R. Møller, 2007. Review of the Dinematichthyini (Teleostei: Bythitidae) of the Indo-west Pacific. Part III. Beaglichthys, Brosmolus, Monothrix and eight new genera with description of 20 new species. The Beagle, Records of the Museums and Art Galleries of the Northern Territory 23:29-110. (Ref. 76869)
IUCN Red List Status (Ref. 119314)
CITES (Ref. 115941)
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00457 (0.00179 - 0.01169), 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
): 3.1 ±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) .