^ MOLLUSCA or INDIA. 283 



obtained in Sikhim, that althongh imperfect on the columellar 

 margin, T describe it, as it cannot fail to be found again ; its large 

 body-whorl and sharply coiled apex distinguish it. 



Ceyptaustenia ? HELVA, n. sp. (Plate OXXV, figs. 4, 4 a.) 



Locality. South Sylhet Hills ( W. Chennell). 



Shell depressedly globose, not perforate, very thin, transparent, 

 membranaceous ; sculpture none, distant Avavy lines of growth ; 

 colour bright golden ochre ; spire but sparsely raised above last 

 whorl; suture shallow; whorls 3, rapidly increasing, the last 

 ample ; aperture rotundately quadrate, broader than high, sub- 

 vertical ; peristome very thin ; columellar margin nearly vertical. 



Size: maj. diam. 12-0, min. 9-o ; alt. axis 4-5 mm. 



Sixteen specimens were collected, large and small, of this very 

 pretty and distinct species of which the animal is not known. It 

 in all probability belongs to the genus Gryptmistenia. Its nearest 

 ally is Criiptausteida durrcnujensis from Assam {vide Plate CVIII. 

 figs. 5, 5 b). 



Genus Etjrychlamts. 

 {^Continued from Vol. I. p. 93.) 



When looking over the fine collection of Indian land shells 

 collected by William Blanford, and sorting out the valuable type 

 shells which it contains, I have found four pill-boxes labelled 

 jylatychlamys. 



1. Prom the typical locality Bombay, some 14 specimens in 

 all stages of growth. 2. From Champanir, near Broach, 19 

 specimens. 3. Prom the Wynaad, marked from Beddorae, one 

 fine specimen slightly broken, and a young shell. 4. One 

 specimen of true platycldamys, no locality on box, with another 

 species tenuicula, H. Adams, a species common at Khandala near 

 Bombay. In Blanford's original description of MacrochlamyH ? 

 2)latyclilamys, J. A. S. B. vol. xlix. pt. 2, 1880, pi. ii. fig. 9, from 

 Bombay, he says, " This shell is common in the island of Bombay 

 and neighbouring lowlands on the west coast of India " ; and he 

 goes on to mention No. 3, which " appears undistinguishable,"' 

 also No. 2 from the ancient town of Champanir, near Broach, 

 and says they " may very possibly be a variety of M. platychlamys. 

 The specimens are larger than the Bombay types, an adult 

 measuring 16 mm. by 14 mm. in its two diameters, and some 

 individuals attain even greater dimensions ; the mouth, too, is 

 rather more convex beneath, but otherwise the two forms agree 

 very closely." 



I do not consider No. 3 from the Wynaad to be the same as 

 the type from Bombay, but the single full-grown shell is not 

 in a sufficiently good state to say much about, and no doubt 

 Col. Beddome has other specimens in his colleciiou. As to No. 2, 



