Family Lycoteuthidae - firefly squids

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Cephalopoda
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  Environment
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Fresh : No | Brackish : No | Marine : No
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  Remark
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Mostly small, muscular squids. Suckers present on arms and clubs, hooks absent. Four or 5 oval light organs on ventral surface of eye ball (ocular photophores). Visceral light organs: anal, branchial and postero-abdominal organs. Spherical light organs embedded in tentacles. Occurring from the surface to 3 300 m. Occupying mesopelagic depths during the day and migrating into near-surface waters at night. They are mainly tropical and subtropical in distribution. They possess a large variety of luminous organs. Strong sexual dimorphism in general morphology occurs in some species. Two subfamilies are recognized, the Lycoteuthinae and the Lampadioteuthinae (Ref. 104052).
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Ref.
[ e.g. 9948]                       
Glossary
                    [ e.g. cephalopods]


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