SATIELLA. 223 



330. Satiella christianae, Theobald (Vitriuia), J. A. S. B. xxxiii, 1864, 



p. 245; H. # T. (Vitrina) C. I. 1876, pi. 66, figs. 7, 10; Nevill 

 (Helicarion), Hand-l. i, 1878, p. 14 : Godwin- Austen, A. M. N. H. 

 (5) viii, 1881, p. 377; id. (Durgella) Mol. 2nd. ii, 1898, p. 65, 

 pi. 79, figs. 1-5 (shell, animal, and anatomical details). 



Shell imperf orate, globosely depressed, thin, translucent, smooth, 

 polished, pale yellowish horny ; spire almost flat, suture impressed ; 

 whorls 3J, convex, rapidly increasing, the last rounded at peri- 

 phery, swollen below ; aperture oblique, roundly lunate : peristome 

 thin, slightly arcuate above, columellar margin subvertical. 



Major diarn. 13, niin. 11, height 8 mm. A smaller specimen is 

 10x5x 6 mm. 



Hob. Andaman Islands, Port Blair. 



Animal in spirit-specimen about 1| inches long. Whole body 

 dark, with the shell-lobes conspicuously pale-coloured. Shell- 

 lobes of mantle large. No dart-sac ; the spermatheca long and 

 small, expanding at the end into a large pear-shaped sac. 



In each row of the radula there is a very minute rhachidian 

 tooth, terminally bicuspid, followed by curved bicuspid laterals, 

 towards the margin these laterals show the pectiniform edges 

 characteristic of the genus. Jaw straight, with a slightly convex 

 edge. 



It will be seen that the teeth cf this radula differ considerably 

 from those of S. levicula and its allies. 



331. Satiella levidensis, Godwin- Austen (Durgella), Mol. Ind. ii, 



1898, p. 78, pi. 68, figs. 6-9 (shell, animal, and radula). 



[Fig. 77, E, R] 



This is distinguished from S. dekhanensis by its much higher 

 spire, globose form, and smaller size ; whorls 4 ; the spire is 

 exserted and blunt; surface smooth, colour pale green and 

 ochraceous. 



Major diam. 10*5, axis (not height) 5*5 mm. Another speci- 

 men measures 13 x 10 j x 7 mm. 



Hob. Tinnevelly Hills, Travancore. 



Animal like S. dekhanensis. The lingual ribbon consists of 

 about 68 rows, each of about 350 to 400 . 1 . 350 to 400 teeth, very 

 closely packed. The rhachidian tooth is small, unicuspid ; lateral 

 teeth long, uniform, and terminally bicuspid, the outermost being 

 serrated on the outer side below the bicuspid apex. Jaw leathery, 

 as in S. dekhanensis. 



These South-Indian species are most nearly allied to the 

 Andaman S. Christianas. 



332. Satiella flexilis. sp. n. 



Shell imperf orate, subglobosely depressed, very soft and flexible, 

 scarcely retaining its shape, smooth, moderately polished, diapha- 

 nous, pale greenish ; spire low, but apex slightly prominent, blunt, 

 suture shallow ; whorls 4|, convex, the last rounded at the 



