Tropical Bottletail Squid (species: Sepiadarium kochi) in taxonomy (Lizard Island Field Guide)
Sepiadarium kochi
Tropical Bottletail Squid

©Mike Bok: Sepiadarium kochi from Lizard Island (aquarium photo).

©Roy Caldwell: Sepiadarium kochi at Lizard Island

©Roy Caldwell: Sepiadarium kochi from sandflat in front of Lizard Island Research Station.
Kingdom Animalia
Phylum Mollusca
Class Cephalopoda
Order Sepiida
Family Sepiadariidae
Genus Sepiadarium
Species Sepiadarium kochi



Distinguishing features

A very small, round squid that lives buried in sand during the day, emerging at night to feed. Kidney-shaped fins. Orange and white.


  • Up to 3 cm (Body length)



©Atlas of Living Australia: Australian distribution

Local abundance

  • Lizard Island: Roy Caldwell notes (2015) that this species is common buried in sand in front of LIRS.

Web resources


References that assist with identification

  • Norman, M. (2000). Cephalopods: A world guide ConchBooks, Hackenheim, Germany.