Pinnoctopus Cordiformis
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An illustration of pinnoctopus cordiformis, a type of cephalopods. The cephalopods are the mollusc class Cephalopoda characterized by bilateral body symmetry, a prominent head, and a modification of the mollusk foot, a muscular hydrostat, into the form of arms or tentacles. Teuthology, a branch of malacology, is the study of cephalopods.
Galleries
Squid, Octopus, and NautilusSource
Encyclopaedia Britannica (11th ed., vol. 5) (New York, NY: The Encyclopaedia Britannica Company, 1910)
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