الفهرس 
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Abstract
Cephalopods are animals with a well-developed head and body that consists of the muscular mantle, mantle cavity houses the internal organs and also houses the external fins when present and it also characterized by bilateral symmetry (FAO, 2005). The head bears an anterior circumoral crown of mobile appendages around the mouth which are the arms and contractile tentacles. This characteristic feature reflects the origin of the name cephalopoda which is derived from the union of the two Greek words „kefale‟, head, and „pous‟, feet. (FAO,2005). Cephalopods are the most complex individuals among the whole invertebrate phyla. They are exclusively marine that means they live in all oceans and seas except Black Sea from continental shelves and slopes throughout most of the world‟s oceans (FAO, 2005). All cephalopods are carnivores, and most exhibit a preference for live natural foods (Iglesias et al., 2014). Cephalopods with highly advanced visual and nervous system that explains why these creatures are highly active and intelligent (Boyle and Rodhouse, 2005).