2/19/2023 0 Comments Squids vs octopus![]() So how can you tell these captivating cephalopods apart?īoth squid and cuttlefish have remnants of their ancient external shells, but these hard structures look quite different. Fun fact: The mysterious vampire squid has an order of its own! They’re part of order Vampyromorphida, which is comprised of only one living species. Squid, on the other hand, are part of order Teuthida, which includes the Caribbean reef squid, short-finned squid and giant squid. Here’s where they start to differ: cuttlefish are in order Sepiida, which includes species like the common cuttlefish, flamboyant cuttlefish and striped pajama squid. Both squid and cuttlefish are known as ten-armed cephalopods because they have eight short arms and two long tentacles (as opposed to eight-armed cephalopods like octopuses). Cephalopods get their name from the Greek word meaning “head-feet”, because their arms encircle their heads. Unlike other mollusks, like clams and snails, most cephalopods have lost their hard outer shells. Both squid and cuttlefish are part of class Cephalopoda, which is a type of mollusk that also includes octopus and nautilus. Let’s start with what they have in common. ![]() Take a minute to explore these tentacled invertebrates-and learn how to tell them apart. ![]() The octopus is one of the most well-recognized animals in the sea, but what about their lesser-known cousins? Squid and cuttlefish may not get as many Hollywood roles as their eight-armed relatives, but they’re equally as interesting.
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