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The Origin of Abnormal Micropyle Apparatus of Eggs of Carausius Morosus Br. (Cheleutoptera, Phasmidae)

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image of Netherlands Journal of Zoology
For more content, see Archives Néerlandaises de Zoologie (Vol 1-17) and Animal Biology (Vol 53 and onwards).

A description of normal and abnormal micropyle apparatus (m.a.) of eggs of Carausius morosus Br. has been given. Eggs with abnormal m.a.'s are flattened or indented in the region of the m.a. They appear in various frequencies during the oviposition period. The observations strongly suggest that the abnormal m.a.'s are caused by the pressure the growing oocytes exert upon each other.

Affiliations: 1: Institute of Genetics, University of Groningen, Haren, The Netherlands


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