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Published on Apr 28, 2009
Micah and I came across this small bobtail squid resting on the bottom during a night dive. Bobtail squid (order Sepiolida) are a group of cephalopods closely related to cuttlefish. Bobtail squid tend to have a rounder mantle than cuttlefish and have no cuttlebone. They have eight suckered arms and two tentacles and are generally quite small (typical male mantle length being between 1 and 8 cm).Sepiolids live in shallow coastal waters of the Pacific Ocean and some parts of the Indian Ocean. Like cuttlefish, they can swim by either using the fins on their mantle or by jet propulsion. They are also known as dumpling squid (owing to their rounded mantle) or stubby squid.