224 ZONITIDiE. 



periphery, slightly tumid beneath ; aperture oblique, lunately 

 semiovate ; peristome thin, upper margin slightly arcuate, colu- 

 mellar curved, subvertical above. 



Major diam. 13, min. 10|, height about 64 mm. 



Hah. Nilgiri Hills (Beddome). A shelf from Sispara Ghat, 

 collected by myself, is apparently the same. 



This is more tumid than S. jyertcnuls or S. levidensis and is 

 even thinner and more flexible. It can easily be recognized by its 

 greenish colour. 



333. Satiella compressa, sp. n. 



Shell imperforate, depressed, thin, membranaceous, slightly 

 flexible, smooth, with obsolete transverse striatiou, pale rufescent 

 brown ; spire A'ery low, conoidal, apex subacute, suture scarcely 

 impressed. Whorls 4|, flatly convex above, the last bluntly sub- 

 angulate at the periphery, somewhat flattened beneath ; aperture 

 oblique, lunately and subangulately ovate ; peristome thin, upper 

 margin arcuate, coluraellar oblique. 



Major diam. 17j, min. 14|, height 6| mm. 



ffab. Tirrhiot Ghat, Wynaad. 



This is easily recognized by its large size and compressed shape. 



334. Satiella pertenuis, sp. n. 



Shell imperforate, depressed, very thin, submembranaceous, 

 smooth, not highly polished, pale yellowish brown ; spire scarcely 

 raised, but apex prominent, papillar ; suture shallow ; whorls 5, 

 at first closely wound, then increasing more rapidly, flatly convex, 

 the last subangulate above the periphery, then rounded, more 

 tumid beneath ; aperture oblique, lunately ovate ; peristome thin, 

 columellar margin obliquely curved, finally vertical above. 



Major diam. 15^, min. 12|, height about 6| mm. 



Hab. Wynaad (Beddome). 



This is considerably larger than S. levidensis and with an 

 additional whorl. The last whorl, too, is broadei% 



*335. Satiella membranacea, Bs. (Vitrina) A. M. N. H. (2) xii, 

 1853. p. 93 ; Pfr. (Vitrina) Mo7i. Hel. iv, 1859, p. 792 ; H. ^- T. 

 (Vitrina) C. L 1876, pi. 152, fig. 10. 



" Shell much depressed, submembranaceous, obsoletely obliquely 

 striated, strife very close towards the apex, pellucid, greenish 

 horny, polished, slightly convex above, apex flattened, suture 

 scarcely marginate ; whorls 3|, rapidly increasing, the last broad 

 in front, flattened beneath, rounded at the narrow periphery ; 

 aperture oblique, ovate, the upper mai'gin arcuate forwards. 



"Major diam. 11, min. S, height 4 mm."' (Benson, in Latin.) 



Hah. Balcadua (apparently a pass of this name), Ceylon. 



I have not seen this shell, which is evidently an ally of 

 S. del-hanensis, but much more depressed. 



