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Macrouridae
softhead rat-tail
Malacocephalus laevis
Ventral light organ exists
softhead rat-tail is a marine fish found around Atlantic, Indian and Pacific. It inhabits deep water. Records give a maximum length of 60 cm.
- Class
- Teleosts
- Order
- Cods and Hakes
- Family
- Macrouridae
- Genus
- Malacocephalus
- Maximum length
- 60 cm
- Water
- Marine
- Body shape
- elongated
- Distribution
- Atlantic, Indian and Pacific: Western Atlantic: Strait of Florida to Brazil, Gulf of Mexico and Caribbean Sea. Eastern Atlantic: Iceland (Ref. 12462 ) and Faroes to South Africa. Indian Ocean: Arabian Sea, Bay of Bengal, off Maldives and off East African coast. Western Pacific: Indonesian area and Australia. Eastern Central Pacific (Ref. 9315 ). Malacocephalus hawaiiensis , Malacocephalus luzonensis , and Malacocephalus nipponensis are closely related to Malacocephalus laevis and may eventually prove to represent populations of this species, if a comprehensive comparison of material from the Atlantic, Indian and Pacific oceans is done (Ref. 1371 ).
- Conservation status
- LCLeast Concern

