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Histioteuthis

GPO87

Sepia elegans
Staff member
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Joined
Jan 6, 2005
Messages
825
Just woke up today and thought about eye differential in Histioteuthis was a good pondering point.

Here some literature which discusses the importance of it:
Function of the Dimorphic Eyes in the Midwater Squid Histioteuthis dofleini
"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" - Young, 1975
 

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