PLATE LXXVIII. 



[Part YUl.— January 1898.] 



DuRGELLA DEKHANENSis, Godwin-Austeii. South India. 

 Fig. 1. Shell, X 2-5. 



2. Animal and shell (spirit-specimen), showing shell-lobes, X 1'5. 



2 a. Ditto, part of, from the left side, x la. 



2 b. Extremity of foot, showing mucous pore, x 8. 



2 c. Portion of sole of foot, x 8. 



2 d. Mantle-lobes detached : r.s.L, right shell-lobe &c. 



DuRGELLA DEKHANENSIS, Var. BICOLOR. 



Fig. 3. Animal and shell, x 14. 



4. Jaw, X 24. 



5. Generative organs, x 4. 



DuRGELLA LEViDENsis, Godwin-Austeu. Travancore. 



Fig. 6. Animal, viewed from the right side (spirit-specimen), x 4. 



7. Generative organs, x 4. 



7 a. Male organ, opened out on side, x 4. 



7 b. Ditto, end of, enlarged, side view. 



8. Four lateral teeth of odontophore, very much enlarged. 



8 a. The central tooth and outer laterals, x 368. 



9. The buccal mass, x 4. 



