MOLLUSCA OF INDIA. 163 
EXPLANATION OF PLATE XLII. 
Fig. 1, 1 a. Helicarion helene, n. sp. Sydney. From a drawing by Mrs. 
H. Forde. 
2. View of right side of a spirit-specimen, shell removed, showing 
mantle and lobes, x 4 
3. View of left side, ditto. 
4. View from behind. 
5. Shell, x 4. 
6. Jaw, x 12. 
7, 7a, 7 6. Portions of a row of the radula, « 340. 
8. Generative organs, x 4. 
8a. Male organ, x 12. 
9. Helicarion cuvieri: generative organs, after Professor Semper. 
10. Ditto: teeth of radula, central, Nos. 1, 5, 14, 17, and 20, 
x 260. 
EXPLANATION OF PLATE XLII. 
Africarion pallens ?, Morelet (received as Vitrina riippelliana, Pfr., 
Abyssinia, from Mr. R. Damon.) 
Fig. 1. Animal: right side, x 2:4. 
2. Ditto: left side, x 2-4. 
3. Ditto: from behind, x 2:4, 
4. Generative organs, x 4. 
5. Buccal mass, salivary gland, &e., x 4. 
6, 64,66. Radula, x 340. 
7. Jaw, xX 12. 
