390 Journal of the Asiatic Society of Bengal. |[N.S., XIX, 
Several shells from the gorge of the Mekong north of Sha-wa- peer 
(altitude, 6,200 feet) and from a road igs — same river at the Aw 
bend (altitude, 6,400 feet). 30, viand l. v 
Most of the shells are Haadiad any opaque. Those that 
retain the periostracum are of a rather pale hair-brown with a 
white peristome 
Mollendorft regards this form as hardly more than a local 
race of B. minutus from Kangsu. It was described from 
Wu-yuan in Anhui “ Ou-yuan” 4 
12. Buliminus (Subzebrinus) tigricoior, sp. nov. 
(Plate 16, Figs. 3, 3a). 
A single fresh shell (with many of B. tubios) from i fg “ the 
Mekong above Yangtsa. Altitude, 7,000 to 7,500 feet. In 
arid pits te 
The shell is dextral, small and solid, ventricose, rather 
broadly ovate, acuminate, with six whorls. Except the body- 
whorl], the whorls are all shallow and increase in depth very 
gradually. The body-whorl i is almost as deep as the fourth and 
fifth whorls together. The suture is linearly impressed and by 
no means oblique. The whorls are slightly convex. The 
body-whorl descends comparatively little. The umbilicus is 
narrowly rimate. The mouth is pear-shaped and rather large. 
Its peristome is widely interrupted. There is a minute but 
prominent rounded tubercle just within the lip at its left 
upper extremity. he lip is narrowly flattened and expanded. 
pale luteous on the protoconch, which consists of the first 
three whorls, lutesceant on the fourth whor! with brownish 
longitudinal streaks on the younger parts, and shining white 
on ‘the remainder of the shell with deep chestnut streaks on 
the lower parts. The first two whorls are smooth and slightly 
polished, the third sculptured with fine, close-set longitieaae 
striae. These become stronger on the lower parts and prom 
nent but very irregular costae, always of a shining white 
sole take their place on the lower parts of the body-whorl. 
The species is remarkable for its ventricose shell, in this 
respect resembling the Himalayan B. nivicola, which, however, 
has a sinistral shell and a more conoidal outline and is less 
acuminate. 
- Type-specimen in the Z.S.1. (Indian Museum), M +232". 
+. Buliminus (Subzebrinus) dolichostoma Mélldfl. 
een a ae Secor nia Wiegmann, op. cit., p- 228, 
23 (an 
Buliminus dolichostoma, Mollondorft op. cit., p. 338, Plate XII. 
J 3, 14. 
1901. 
1901. 
I attribute to this species without much doubt a ‘‘ dead.” 
perhaps subfossil but perfect shell and an imperfect young 

