Phylum Mollusca: Squid
Description of squid.
Squids are cephalopods and species is compromises over 304 species like other cephalopods, squids have distinct head, bilateral symmetry, a mantle, and arms. Squids, have eight arms arranged in two pairs, usually longer tentacles. Squids are very strong swimmers and can move effectively and efficiently through water. The main body mass is enclosed by the mantle, which has a swimming fin along each side. These fins, unlike in other marine organisms, are not the main source of locomotion in most species. The skin is covered in chromatophores, which enable…