Kwajalein Cephalopods

Cephalopoda at Kwajalein includes species of octopus, squid and cuttlefish. Octopus in particular can be difficult to identify, so many of the names we use are tentative, several based on similarities to photos in Humann & DeLoach, 2010. Reef dwelling squid and cuttlefish are known from only a few species. Although we have seen no living Nautilus specimens and they are not known to occur this far east in the Pacific, there is some evidence that they may live in deep water well down the seaward slopes of Marshall Islands atolls.

OCTOPODIDAE - Octopus


Abdopus aculeatus


Abdopus sp.1

Abdopus? sp. 2

Abdopus? sp. 3

Amphioctopus marginatus

Amphioctopus siamensis

Macrotritopsis? sp.

Octopus cyanea

Octopus wolfi

Octopus? sp. 1



Octopus? sp. 2

Octopus? sp. 3

LOLIGNINDAE - Squid


Sepioteuthis lessoniana

SEPIOLIDAE - Bobtail Squid


Euprymna berryi

IDIOSEPHIIDAE - Pygmy Squid


Idiosepius? sp.

SEPIIDAE - Cuttlefish


Sepia bandensis

NAUTILIDAE - Chambered Nautilus


Allonautilus scrobiculatus


Nautilus pompilius

Humann, Paul & Ned DeLoach. 2010. Reef Creature Identification Tropical Pacific. New World Publications, Inc. Jacksonville.

Back to Critters page

Kwajalein Underwater home

All photos are protected by copyright. Please contact uwkwaj@yahoo.com for more information on purchase, use, or redistribution of any photos.