any of various marine mollusks of the class Cephalopoda,such as the octopus,squid,cuttlefish,or nautilus,having a large head,large eyes,prehensile tentacles,and,in most species,an ink sac containing a dark fluid used for protection or defense
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美
- 头足纲动物,软体动物门的一种海生软体动物,如章鱼、鱿鱼、乌贼或鹦鹉螺,有可缠绕的触须、较大的头和眼,大多数种类都有一个作保护或防卫用的容纳深色液体的内存墨囊