PLATE IV. 



[Part 1.— February 1882.] 



Fig. 1. Animal of <'V///;/oso;w« /^r«s/aH.f, Gould, from nature, nat. size. Copied from an 

 original drawing made by native artist, under the superintendence of the late 

 Dr. F. Stoliczka. 



2. Animal (enlarged), from spirit-specimen, viewed from right side. Shell removed, 



showing the mantle and its lobes. 



3. Ditto, left side. 



4. Ditto, posterior side, viewed from above, showing the junction of the shell-lobes. 



5. Ditto, side view. 



6. Anterior portion, underside of foot, showing the segmented pallial margin. 



7. Side view of extremity of foot. 



8. Generative organs. 



9. Ditto, second specimen. 



10. Male organ, showing the ciceum or k.alk-sac. 



11. Jaw, x20. 



12. Teeth of lingual ribbon, x 360. 



12 c. Laterals, about the 100th from the central tooth. 

 12 6. Outermost laterals. 



