GUDE : NEW HELICOIDS FKOM THE INDIAN HEGION. 55 



at first, showing; the gi-eater part of the penultimate whorl, when it 

 suddenly contracts, leaving only a very narrow perforation. Aperture 

 sub-circular, margins approacliing ; peristome scarcely thickened, 

 expanded, but not reflexed ; the columellar margin triangularly dilated 

 and slightly overhanging the umbilicus. Diam. maj. 14'5, min. 

 1 r5 ram. ; alt. 7 mm. 



Hah. — India : Bombay (Dr. Leith). 



Type in the British Museum. The type was labelled ^ H. helferi\ 

 but upon comparison with Benson's type, kindly lent to me for the 

 purpose by Dr. L. Doncaster, of the University Museum of Zoology, 

 Cambridge, I was able to satisfy myself that it was quite distinct. 



From that Andaman species, it differs in being much thinner in 

 texture, in having the hairs, which are larger and softer, much 



more crowded, and in being coiled differently, as it has the 

 last whorl proportionately wider. It also bears some superficial 

 resemblance to Chloritis propvKiua, but that species is a much 

 stouter shell, with a more elevated spire, while in C. leitlii the 

 umbilicus, although wider at first, becomes more contracted. 

 Two other specimens in the Museum, also from Bombay and 

 received from Dr. Leith, are like the type, but they are slightly 

 damaged. Mr. Ponsonby possesses a specimen wliich, like the Museum 

 shells, was labelled H. helferi. It is a trifle smaller than the type, 

 measuring 14 : 10-75 : 6'75nim., and is labelled Unjunera. I have 

 been unable to trace any such locality, the nearest approach to it 

 being Anjar, a district of Cutch, likewise, therefore, in the Bombay 

 Presidency. 



Chloritis (Trichochloritis) theobaldi, n.sp. 



Shell moderately umbilicated, depressed-conoid, pale corneous, with 

 a very faint supra-peripheral band, finely striated transversely, and 

 densely covered with hair-scars arranged in quincunx. Spire conoid, 

 apex prominent, suture rather deep. Whorls 5|, convex, increasing 

 slowly and regularly, the last widening towards the mouth, not 

 constricted behind the peristome, slightly angulated at the periphery 

 at first, the angulation disappearing near the mouth ; angulated 

 around the deep umbilicus, which shows nearlv the whole of the 

 penultimate whorl. Aperture sub-circular, margins distant, united 

 by a thin sinuous callus on the parietal whorl; peristome white, 

 thickened and shortly reflexed ; margins regularly curved, columellar 

 ascending, triangularly dilated, and slightly overhanging the umbilicus. 

 Diam. maj. 24-5, min. 21 mm. ; alt. 16 ram. Aperture: width 10, 

 height 95 mm. 



Hah. — Shan States. 



