Fathead (Cottunculus granulosus)

Scientific name: Cottunculus granulosus Karrer, 1968

Fathead (Cottunculus granulosus)

The Fathead (Cottunculus granulosus) is a marine fish of the family Psychrolutidae. Native range: Southwest Atlantic, Argentina to southern Brazil. Southeast Pacific: Chile. Two forms are suggested, banded and plain colored.

Biology

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. Color pattern on body varies, with or without three irregular brownish bands.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Cottunculus granulosus
Family
Psychrolutidae (Fatheads)
Order
Scorpaeniformes (Scorpionfishes and Flatheads)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
21.7
Depth range
150–1250 m (492–4101 ft)
Environment
Marine; bathydemersal; depth range 150 - 1250 m
Climate
Deep-water
Distribution
Southwest Atlantic: Argentina to southern Brazil. Southeast Pacific: Chile. Two forms are suggested, banded and plain colored.
Conservation status (IUCN)
Not Evaluated
Threat to humans
Harmless
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.)

Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

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