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Lesson 4 - Deep Sea Cephalopods Rvsd 91517.PDFX-3

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Three arm and tentacle regions:<br />

• Carpus ("wrist”) – dense cups<br />

cluster, in 6 or 7 irregular,<br />

transverse rows<br />

• Manus ("hand") – broader, close<br />

to arm end with enlarged suckers<br />

in 2 medial rows<br />

• Dactylus ("finger”) - the tip; arm<br />

bases & tentacles arranged<br />

circularly surrounding animal's<br />

single, parrot-like beak, like<br />

other cephalopods<br />

Image – Giant squid vintage image showing the<br />

entire body, tentacles and other body parts.<br />

Image in the public domain.

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