Abstract
Valve structure was investigated using light and scanning electron microscopy and each valve was found to comprise four layers; periostracum (dorsal), tegmentum, articulamentum and hypostracum (ventral). The penetration of the valves by the aesthetes within channels is described and three distinct types of aesthete channels are identified, namely, multiple branch aesthete channels, slit ray aesthete channels and jugal sinus aesthete channels. The distribution of the different aesthete channels within the various valves is defined and their relationship with the valve external sculpturing is described. The process of valve growth by marginal increment is discussed in relation to the formation of the aesthetes.
Publisher
Cambridge University Press (CUP)
Reference26 articles.
1. Fine structure of the eyes of Onithochiton neglectus (Mollusca: Polyplacophora)
2. On the shells of Nautilus and Spirula with notes on the shell secretion in noncephalopod molluscs;Mutvei;Arkivfor zoologi,1964
3. A key for use in the identification of British chitons;Matthews;Proceedings of the Malacological Society of London,1953
4. SEM-observations on the shell plates of three polyplacophorans (Mollusca, Amphineura);Fischer;Spixiana,1979
Cited by
24 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献