著者

高 悦勉 夏苅 豊

出版者

The Malacological Society of Japan

雑誌

貝類学雑誌 (ISSN:00423580)

巻号頁・発行日

vol.49, no.2, pp.126-145, 1990-08-31 (Released:2018-01-31)

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Karyological studies were made on the embryos of seven cephalopods using chopping method. Two sepiids (Sepia esculenta and Sepia lycidas) and three loliginids (Sepioteuthis lessoniana, Heterololigo bleekeri and Photololigo edulis) were all 2n=92. Their karyotypes and total length of chromosomes were slightly different from each other. Two octopuses (Octopus ocel-latus and O. vulgaris) were both 2n=60. Their karyotypes and total length of chromosomes were, however, remarkably different from each other.