Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Lophiiformes
(Anglerfishes) > Chaunacidae
Etymology: melanostomus: Specific name alludes to the black pigment lining the buccal cavity that is unique to this species.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathydemersal; depth range 1320 - 1760 m (Ref. 6890). Deep-water; 14°S - 30°S
Eastern Indian Ocean: currently only known from localities between 14° and 30°S and 86° and 114°E.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 7.2 cm SL male/unsexed; (Ref. 6890); 10.0 cm SL (female)
A benthic species found on the continental slope (Ref. 75154). The first video footage of this species was taken from the North West Shelf of Western Australia where it is shown that the fish was on sandy bottom with no rocks visible; and during the 55 s movie, the fish swam slowly for a short distance (about 4-5 times body length) by moving its tail from side to side, stayed motionless for about 20 seconds and then turned right to face the camera by moving the pectoral-fins and the tail at the same time. There were no jet propulsion from the gill openings observed in this individual (Ref. 99940).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Caruso, J.H., 1989. A review of the Indo-Pacific members of the deep-water chaunacid anglerfish genus Bathychaunax, with the description of a new species from the eastern Indian Ocean (Pisces: Lophiiformes). Bull. Mar. Sci. 45:574-579. (Ref. 6890)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 118484)
Threat to humans
Fisheries: of no interest
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 3.3 - 3.8, mean 3.4 (based on 15 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.8 ±0.6 se; Based on size and trophs of closest relatives
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .