94 



Memoirs of the Indian Museum. 



[Vol. V, 



chamber and one in each of the other chambers except the sulcar and sulcular. 

 Most of these rudimentary mesenteries consist merely of the basal (parietal) longitu- 

 dinal muscles and the folded mesogloea that supports them, but those in the sulco- 

 lateral chambers are distinctly better developed and possess a rudiment of the 



Fig. 7. — Edwardsia tinctrix, sp. nov. 



A. Lateral view of the capitulum (from a sketch by Mr. G. Henry). 



B. Transverse section through the upper part of the capitulum. 



C. Transverse section of a fertile male mesentery through the upper end of the gonad. 



membranous part as well ; indeed, they are at least as well developed as the incom- 

 plete mesenteries of Phytocoetes. 



The longitudinal muscles of the complete mesenteries differ in different regions 

 of the column. In the upper part of the capitulum the parietal series are poorly 

 developed, whereas the muscle-banners are large and powerful, occupying the greater 



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