Abstract
Rhabdopleura compactaHincks is shown to be monoecious. It is suggested that the ovum is ovulated and extruded into the lumen of the coenecium via a temporary opening at the base of the metasome, and that the oviduct itself may serve only as a way for sperm to fertilise the ova internally. The zooids degenerate when reproducing sexually and when conditions are unfavourable. The larva and initial stages of astogeny are described. Some observations on seasonal variation in the colonies indicate that the dormant buds serve for storage of nutrients. Reproduction seems to occur throughout the year, but most actively in spring. Relationships with Cephalodiscus and the Bryozoa are briefly discussed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.