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H. bonnellii is the type species of the genus. It reaches a rather large size (33 cm ML, 119 cm total length) for a histioteuthid. Its uneven distribution and variation in characters normally considered stable within species suggests that a number of separate populations exist.
Brief diagnosisA Histioteuthis ...
- with three series of photophores on arms III.
- with three large, dark, round photophores on the ventrolateral corner of the head.