PLATE XI. 



[Part II.— July 1882.] 



Fig. 1. Animal of Hyalimax (Jarava) andamanica, from spirit-specimen, right side, 

 x4. 



2. Ditto, viewed from the left side. 



3. Ditto, right side, showing the position of the respiratory and anal orifices. 



4. 4 a. Ditto : shell, x 8 and natural size. 



5. Ditto: view from below, x4. ^4, anal aperture; V, heart; /?(^s.o/-., respiratory 



aperture; r.m.T., retractor-muscle tentacles; r.m.B., ditto, buccal mass. 



6. Ditto : much enlarged view of the buccal mass, showing the form of its posterior 



end. s, salivaiy-gland duct. 



7. Ditto : jaw, X 20. 



8. Ditto : central teeth of the radula, x 1250. 



9. Ditto : generative organs, x 8. 



10. Shell of Hyalimax perlucidus, Quoy and Gaimard, from ^Mauritius. 



