Illustrations of the Anatomy and of Shells 505 



V. 





ii'Ty^f^j 



10 



11 



V 



IS 



19 



20 



5 





12 



^ 



21 



15 



?► 



16 





17 



22 



13 



(^ 



i 



14 



24 



25 



26 



27 



28 



29 



PLATE 134 



