224 ZONITIDJE. 



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 6 mm. 



Hob. Nilgiri Hills (Beddome). A shell from Sispara Ghat, 

 collected by myself, is apparently the same. 



This is more tumid than S. pertenuis 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, membranaceoue, slightly 

 flexible, smooth, with obsolete transverse striation, pale rufescerit 

 brown ; spire very low, conoidal, apex subacute, suture scarcely 

 impressed. Whorls 4j, 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, columellar oblique. 



Major diam. 17J, min. 14J, height 6^ mm. 



Hal. 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. 



ffab. Wynaad (Beddome). 



This is considerably larger than S. levidensis and with an 

 additional whorl. The last whorl, too, is broader. 



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

 1853, p. 93 ; Pfr. (Vitrina) Man. Hel iv, 1859, p. 792 ; H. $ T. 

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



" Shell much depressed, submembranaceous, obsoletely obliquely 

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

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

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

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

 aperture oblique, ovate, the upper margin arcuate forwards. 



"Major diam. 11, min. 8, height 4 mm." (Benson, in Latin.) 



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



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

 S. dekhanensis, but much more depressed. 



