PLATE C'XVI. 



[Part X.— April 1907.] 



Sakika ruMicAi'A, Morelet. Si;mi. 



I'ii;. 1. Genitalia, jiarts separated, X ^^^■ 



I I/. Mantle-edge removed, showing shell- and dorsal lobes, x I'J. 



1 /■. Teeth of the radula at different parts of the row, x 3U8. 



1 r. Jaw, X 12. 



Saiiika kesplendens, I'hil. .Mcr^iii. 

 I'if?. 2. Mantle-edge removed, showing .shell- and dorsal lobes, X -1'5. 



2 a. Teeth of radula at different parts of the row, x .'368. 

 :l/j. Jaw, x 1.2. 



.SoPHiNA cALiAs, Hs. Mergui. 

 l''ig. i5. Generative organs, X 4'5. 



Lei'Todo.makuj.n niR.vsEA.NUs, I'ilsbry. Sonth Formosa. 



Fig. 4. Geuitalii, jiart of, x -iij. 



Aa. Spermatheca and adjacent jiarts, x 12. 



4 6. The male organs, x 12. 



4 c. Teeth of the ratlula at different parts of the row, x 1 100. 



4 d. Jaw, X 30. 



I'bTALOtiiLA.MVs KoKMosANA var. H V i'o(i KAPrA , I'ilsl)) V & Hirase. South l-'oiiiio'^a. 

 Fi:;. ."). Portion of generative organs, penis &e., x 4'5. 



5 II. Teeth of the radula at different parts of the row, x 1 100. 

 .') b. Jaw, X 30. 



Lamprocvshs KULGiUA, n. sp. South Foi-mosa. 

 Fi". G. Teeth of the radula at different parts of the row, x 1100. 

 (i«. Jaw, X 30. 



DuiiuELLA uooEKsi, u. sp. Soutli Andaman. 



Fig, 7. Teeth of the radula, x 1100. 

 7 a. Jaw, X 30. 



