PLATE XLII. 



[Part \Y.—Septeniher 1883.] 



VlTRINA RUPPELLIANA, Pfr. Abvssillia. 



Fig. 1. Animal: riglit 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, &c., x 4. 



6. G a, G b. Radula, x 340. 



7. Jaw, x 12. 



