Premium
Morphology of the Luminous Organ of the Squid Loligo duvauceli d'Orbigny, 1839
Author(s) -
Pringgenies Delianis,
Jørgensen Jørgen Mørup
Publication year - 1994
Publication title -
acta zoologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.414
H-Index - 37
eISSN - 1463-6395
pISSN - 0001-7272
DOI - 10.1111/j.1463-6395.1994.tb00967.x
Subject(s) - biology , loligo , anatomy , squid , morphology (biology) , zoology , fishery
The present paper deals with the morphology of the luminous organ of the squid Loligo duvauceli , caught in the sea off Indonesia and Thailand. Two luminous organs are situated on the ventral surface of the ink sac, near the anus. Each organ consists of a luminous sac divided into numerous discrete chambers containing bacteria. On the ventral side the organ is bordered by a lens‐like structure, consisting of muscle cells. On the remaining sides the bacterial chambers are limited by a cup‐shaped reflector layer with numerous parallel lamellae. The reflector separates the bacterial chamber from the ink sac. A ciliated channel connects the interior of the bacterial chamber with the mantle cavity.