Teleostei (teleosts) >
Lophiiformes (Anglerfishes) >
Chaunacidae (Sea toads o coffinfishes)
Etymology: Chaunax: Greek, chaunax, -akos = a conceited man (Ref. 45335); nebulosus: Name from Latin word nebula, meaning "cloudy" (more or less), referring to its unique, diffuse, grayish green colour pattern overlain dorsally with five black spots.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathydemersal; depth range 218 - 380 m (Ref. 94130). Tropical; 18°S - 32°S (Ref. 94130)
Eastern Indian Ocean: NW Australia, with first record in Indonesia (Ref. 117885).
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 21.2 cm SL male/unsexed; (Ref. 94130)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 3; Dorsal soft rays (total): 12; Anal soft rays: 7. This species which is a member of the C. fimbriatus-species group is distinguished from its congeners by its dense covering of minute grayish-green irregular spots, five large blackish dorsal markings and by the following characters: modally 14 pectoral-fin rays; bridging each neuromast are 3-4 pairs of spinules; second gill arch with 8-9 rakers; long and slender illicium; elongate illicial trough which is longer than wide; esca with numerous thin pale cirri with brown tips; pale gill chamber with large blackish patch on inner wall of opercle; pale peritoneal membrane; lateral-line neuromast counts: anterior body proper = 3-5 (mainly 4), upper preopercular = 2-3 (2), infraorbital = 5-7 (6), hyomandibular = 3-4 (3), pectoral = 10-12 (10 or 11), body proper = 29-35 (Ref. 94130).
Deepest capture of a specimen collected from a trawl station covered 20-850 m depth interval (Ref. 94130).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Ho, H.-C. and P.R. Last, 2013. Two new species of the coffinfish genus Chaunax (Lophiiformes: Chaunacidae) from the Indian Ocean. Zootaxa 3710(5):436-448. (Ref. 94130)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
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Internet sources
Estimates based on models
Preferred temperature (Ref.
123201): 10.9 - 17, mean 13.4 °C (based on 10 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01905 (0.00762 - 0.04763), b=3.02 (2.80 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 4.1 ±0.7 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (16 of 100).
