Actinopterygii (ray-finned fishes) >
Scorpaeniformes (Scorpionfishes and flatheads) >
Psychrolutidae (Fatheads)
Etymology: Cottunculus: Greek, kottos = a fish, diminutive.
Environment / Climate / Range
Ecology
Marine; bathydemersal; depth range 150 - 1250 m (Ref. 55609). Deep-water, preferred ?; 38°S - 55°S
Southwest Atlantic: Argentina to southern Brazil. Southeast Pacific: Chile. Two forms are suggested, banded and plain colored.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 21.7 cm SL male/unsexed; (Ref. 27363)
Short description
Morphology | Morphometrics
Dorsal
spines
(total): 5 - 6;
Dorsal
soft rays
(total): 13-14;
Anal
spines: 0;
Anal
soft rays: 11 - 12;
Vertebrae: 29. Diagnosis: Interorbital region concave with the side borders strong and higher. Vomerine teeth well-developed. Bony plates on head and body widely scattered, each with several prickles. Head spines are prominent, suborbital spines distinct and in three paired sets, Lateral line pores on body not emerging in distinct tubes (Ref. 55609). Color pattern on body varies, with or without three irregular brownish bands (Ref. 27363).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Nakamura, I., T. Inada, M. Takeda and H. Hatanaka, 1986. Important fishes trawled off Patagonia. Japan Marine Fishery Resource Research Center, Tokyo. 369 p. (Ref. 27363)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 94142)
Not Evaluated
Threat to humans
Harmless
Human uses
More information
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
Age/SizeGrowthLength-weightLength-lengthLength-frequenciesMorphometricsMorphologyLarvaeLarval dynamicsRecruitmentAbundance
Tools
Special reports
Download XML
Internet sources
Estimates of some properties based on models
Phylogenetic diversity index (Ref.
82805): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm Total Length, based on all LWR estimates for this body shape (Ref.
93245).
Trophic Level (Ref.
69278): 3.7 ±0.3 se; Based on size and trophs of closest relatives
Resilience (Ref.
69278): .
Vulnerability (Ref.
59153): Low vulnerability (16 of 100) .