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Arm Abnormality in Octopus


WHILE working through the cephalopod collections of the University of Miami Marine Laboratory I found a specimen which possessed an abnormal third left arm. The arm was divided into two branches. An unusual feature was the presence of a well-developed web between the two divisions as found uniting the bases of normal arms in this species.

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KUMPF, H. Arm Abnormality in Octopus . Nature 185, 334–335 (1960).

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