Summary ¹

Spirula spirula is a species of deep-water squid-like cephalopod mollusk. It is the only extant member of the genus Spirula, the family Spirulidae, and the order Spirulida. Because of the shape of its internal shell, it is commonly known as the ram's horn squid or the little post horn squid. Because the live animal has a light-emitting organ, it is also sometimes known as the tail-light squid.

Sources and Credits

1. (c) Wikipedia, some rights reserved (CC BY-SA), https://en.wikipedia.org/wiki/Spirula_spirula

More Info

• iNat taxon page
• Animal Diversity Web
• Atlas of Living Australia
• Biodiversity Heritage Library
• BOLD Systems BIN search
• California Academy of Sciences
• FishSource
• Global Biodiversity Information Facility (GBIF)
• iNaturalist Cephalopod Working Group
• NatureServe Explorer 2.0
• SeaLifeBase
• World Register of Marine Species

iNat Map