marine mollusk characterized by well-developed head and eyes and sucker-bearing tentacles

squids and cuttlefishes

widely distributed fast-moving ten-armed cephalopod mollusk having a long tapered body with triangular tail fins

ten-armed oval-bodied cephalopod with narrow fins as long as the body and a large calcareous internal shell

a small tropical cephalopod of the genus Spirula having prominent eyes and short arms and a many-chambered shell coiled in a flat spiral

squids and cuttlefishes