PLATE XCIII. 



[Part JX.—Noremher 1899.] 



i\lARi,T:ij,A [ — GiKAsiA (Dekhama) of Vol. I.] dussumieri, Vnl. (lilack 



specimen). Mysore. 

 V\il. 1. Shell, from above, x 2'?t. 

 1 a. Generative ororans, x 2*5. 

 I h. Spcrmatophore, x 4'5. 



1 r. Ditto, basal end, x 12' 1. 



MAitr,T:i,LA [ = GiRASiA (Dekhania) of Vol. I.] nrssuMiEui. \'al. (a dark olivaceous- 

 green specimen). 

 V\%. 2. . Animal, view of rif;;ht side, X 2'4. 



2 a. Ditto, from above, X 2*4. 

 2 h. Shell, X 2-5. 



2 c. Ditto, X 1-5. 



Microcystis? amb.e, ii. sp. Ceylon. 

 Fig. 3. Shell, front view, x 12. 

 .'5 (I. Ditto, from above, X 8. 

 '.\ I). Sculpture, x 58. 



3 c. Head of animal *, x 21. 



3 d. Extremity of loot f, x 24. 

 3 e. Teeth of radula, x 3r)8. 

 3/. Embryonic shells in the uterus, X 12. 

 3//. Ditto, one enlarged, x 24. 



3//. An embryo, showing stnge of development, x 58. a, ? anal aperture; lies.ap, 

 ?the respiratory ditto. 



Kaliella DKLECTADiLis, Sykcs. Ceylon. 

 l""ig. 4. Sculpture, x 58. 



* Eye-bearing tentacles decayed. 



t State of pret^eiTution did not admit of seeing any raucous gland. 



