Metasepia pfefferi

Metasepia pfefferi is a type of cuttlefish. This type of cuttlefish is poisonous.  They have short board but blade like arms . they have sucker on them that are in rows of four. They are also used for fertilization. When they mate it is called hectocotylus. The suckers also help with walking on the ocean floor. Most of them grow 8 to 6 cm long. They have a cuttle-bone which is hard, brittle internal structure and internal shell. It is a chambered, gas-filled shell used for buoyancy control. Its cuttle-bone is small compared to other cuttlefish. Even though it appearances to look rough it is smooth. They are active during they day. They hunt and eat fish and crustaceans. They are able to hide from pry and scare them off. They have a pattern of black, dark brown, and white, with yellow patches around the mantle, arms, and eyes. The arm tips often display bright red coloration to ward off would-be predators. The skin of the M. pfefferi contains the poisonous toxins.

http://en.wikipedia.org/wiki/Metasepia_pfefferi

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