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Title: Function of the Dimorphic Eyes in the Midwater Squid Histioteuthis dofleini 
Author: Young, Richard Edward
Date: 1975-04
Publisher: University of Hawai'i Press
Citation: Young RE. 1975. Function of the dimorphic eyes in the midwater squid Histioteuthis dofleini. Pac Sci 29(2): 211-218.
Abstract: The squid Histioteuthis dofleini, like other members of the family
Histioteuthidae, has a large left eye and a small right eye. The large eye points in a
dorsal posterior direction while the squid typically orients at an oblique angle with
the arms downward. The large eye, as a result, points vertically upward. The small
eye appears to be directed ventrolaterally. This squid occurs primarily at depths of
500 to 700 m during the day where it is exposed to low levels of downwelling light.
Presumably the large eye utilizes this faint downwelling light while the smaller eye
utilizes bioluminescent light.
ISSN: 0030-8870

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