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Joubiniteuthis portieri is a meso- to bathypelagic squid found circumglobally in tropical and subtropical regions. This squid is unusual in possessing extremely long arms I-III that bear numerous small suckers in six series. Little is known about the biology of this squid. Perhaps it floats in the depths of the ocean with arms outstretched waiting for a small animal to accidently swim into them.
A member of the chiroteuthidae families ...
- with suckers in six series on arms I-III.
- with suckers in four series on arms IV.
- with arms I-III three or more times as long as arms IV.