Histioteuthis Corona

''Histioteuthis'' is a genus of squid in the family Histioteuthidae. It goes by the common name cock-eyed squid, because in all species the right eye is normal-sized, round, blue and sunken; whereas the left eye is at least twice the diameter of the right eye, tubular, yellow-green, faces upward, and bulges out of the head.

In 2017, researchers at Duke University established that ''Histioteuthis'' uses its larger eye to see ambient sunlight, and its smaller eye to detect bioluminescence from prey animals.Mismatched Eyes Help Squid Survive Ocean’s Twilight Zone
at Duke University; by Kara Manke; published February 13, 2017; retrieved June 25, 2017

The name is composed of the Greek ' (, "sail", a large webbed membrane between six of the arms, in some species) and ' ("squid").

The genus contains bioluminescent species.

Species

*''H. bonnellii'' species-group
**'' Histioteuthis bonnellii'', umbrella squid
**'' Histioteuthis machrohista''
*''H. reversa'' species-group
**''Histioteuthis eltaninae''
**''Histioteuthis atlantica''
**'' Histioteuthis reversa'', reverse jewel squid
*''H. celetaria'' subspecies-group
**'' Histioteuthis celetaria celetaria''
**'' Histioteuthis celetaria pacifica''
*''H. corona'' subspecies-group
**'' Histioteuthis corona berryi''
**'' Histioteuthis corona cerasina''
**'' Histioteuthis corona corona''
**'' Histioteuthis corona inermis''
*''H. miranda'' species-group
**''Histioteuthis miranda''
**'' Histioteuthis oceani''
*''H. meleagroteuthis'' species-group
**''Histioteuthis heteropsis'', strawberry squid
**'' Histioteuthis meleagroteuthis''

References

External links

Histioteuthidae discussion forum at TONMO.com

Squid
Bioluminescent molluscs

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