Spirula spirula (Linnaeus, 1758)

Ram's horn squid

Native range | All suitable habitat | Point map | Year 2050

This map was computer-generated and has not yet been reviewed.

Spirula spirula AquaMaps Data sources: GBIF OBIS

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Spirula spirula

Classification / Names Κοινά ονόματα | Συνώνυμα | CoL | ITIS | WoRMS

Cephalopoda | Spirulida | Spirulidae

Environment: milieu / climate zone / εύρος βάθους / distribution range Οικολογία

Πελαγικό(ά); εύρος βάθους 100 - 1750 m (Αναφ. 1695). Tropical; ? - 10°C (Αναφ. 1695); 69°N - 32°S, 89°W - 160°W

Distribution Χώρες | Περιοχές FAO | Οικοσυστήματα | Παρουσίες | Εισαγωγές

Circumglobal in tropical and subtropical oceanic waters. Tropical to polar.

Length at first maturity / Μέγεθος / Weight / Age

Γεννητική Ωρίμανση: L_m ?, range 30 - ? cm Max length : 4.5 cm ML αρσενικό/απροσδιόριστο; (Αναφ. 1695)

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).

Life cycle and mating behavior Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Eggs | Γονιμότητα | Larvae

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.