Spirula spirula (Linnaeus, 1758)
Ram's horn squid
Spirula spirula
photo by Grist, John and Maria

Family:  Spirulidae (ram's horn squid)
Max. size:  4.5 cm ML (male/unsexed)
Environment:  pelagic; marine; depth range 100 - 1750 m
Distribution:  Circumglobal in tropical and subtropical oceanic waters. Tropical to polar.
Diagnosis:   
Biology:  Minimum depth from Ref. 106682. Rarely exceeds 4.5 cm ML (Ref. 1695). Migrates from 550 to 1000 meters during the day, and 100 to 300 meters at night (Ref. 106682). Young is captured at depths 1,000 to 1,750 m, which suggests that females lay eggs on bottom of continental slopes (Ref. 1695). Dead shells washed up on the beaches often in large numbers (Ref. 88739).
IUCN Red List Status: (LC); Date assessed: 29 March 2009 Ref. 123251)
Threat to humans: 
Country info:   
 

Entered by: Pan-Saniano, Marianne - 11.12.05
Modified by: Sorongon-Yap, Patricia - 18.09.17
Checked by: Rosenberg, Gary - 12.08.11

Source and more info: www.sealifebase.org. For personal, classroom, and other internal use only. Not for publication.


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