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Spirula spirula   (Linnaeus, 1758)

ram's horn squid

Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Spirula spirula   AquaMaps   Data sources: GBIF OBIS
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Image of Spirula spirula (ram
Picture by Grist, John and Maria

Classification Common names | Synonyms | CoL | ITIS | WoRMS

Cephalopoda | Spirulida | Spirulidae

Main reference References | Biblio | Coordinator | Collaborators

Jereb, P. and C.F.E. Roper (eds.). 2005. (Ref. 1695)

Size / Weight / Age

Max length : 4.5 cm ML male/unsexed; (Ref. 1695)

Environment

Pelagic; depth range 300 - 1750 m (Ref. 1695)

Climate / Range

Tropical; ? - 10°C (Ref. 1695); 54°N - 32°S, 89°W - 160°W (Ref. 1695)

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Circumglobal in tropical and subtropical oceanic waters.

Biology     Glossary (e.g. epibenthic)

Rarely exceeds 4.5 cm ML (Ref. 1695). Inhabits depth 600 to 700 m during the day and found in depths less than 300 m at night. 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). Members of the class Cephalopoda are gonochoric. Male and female adults usually die shortly after spawning and brooding, respectively. Mating behavior: Males perform various displays to attract potential females for copulation. During copulation, male grasp the female and inserts the hectocotylus into the female's mantle cavity where fertilization usually occurs. Life cycle: Embryos hatch into planktonic stage and live for some time before they grow larger and take up a benthic existence as adults (Ref. 833).

IUCN Red List Status (Ref. 114614)

CITES status (Ref. 94142)

Not Evaluated

Threat to humans

Human uses


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More information

Common names
Synonyms
Predators
Reproduction
Maturity
Spawning
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Morphology
Larvae
Abundance
References
Mass conversion

Internet sources

BHL | BOLD Systems | Check for other websites | Check FishWatcher | CISTI | DiscoverLife | FAO(Publication : search) | GenBank (genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | ispecies | National databases | PubMed | Scirus | FishBase | Tree of Life | uBio | uBio RSS | Wikipedia (Go, Search) | Zoological Record

Estimation of some characteristics with mathematical models

Price category (Ref. 80766)
Unknown