PI-ATE I.XXII. 



[Part YlU.—Jaminri/ 1808.] 



Cryptosoma imperator, Go\ild. Hongkong. 



Fig. 1. Shell, X 1-5. 



1 a. Shell and animal, nat. size (spirit-specimen), viewed from right side. 



1 b. Ditto, viewed from left side. 



2. Animal with shell removed, viewed from right side, X -iS 



2 a. Ditto, viewed from the posterior side, x 4'5. 



2 b. View showing left shell- and neck-lobes, x 4'5. 



2 c. Mucous gland from posterior side, x 4 5. 



3. Buccal mass, x 4'5. 



4. Jaw, x4-5. 



5. Central teeth of odontophore, x 196. 

 5(7. Median teeth, 11th to 16th, x 368. 



5 6. Outer lateral teeth, x 196. 



6. (jcnerative organs, x 4'5. 



6 a. The male organ, x 12"4. m, the side of the muscular sheath is here broken. 



