396 Journal of the Asiatic Society of Bengal. [N.S., NIX, 1923.] 
Bb. (Pupinidius) chrysalis. 
Height of shell .. 245mm. 26 mm. 25mm. 24:5mm. 
x. diameter 3 446 nim. mm 13mm. 13°5mm. 
Height of mouth .. 10 min. 105mm. 10mm. 105mm. 
Max. diameter «. @3 mim. 7 mm. 7mm. 7 Wits: 
bL. (Holeauchen) gregoriana. 
Height of in .-. 10 mm. 95mm. 10 mm. 10 mm. 
Max. diam . - in. Pimm: 26mm, Sie: 
Height of mouth . 2hem. 2onm. 26mm. 25 2M, 
Max. diameter ee l5mm. 5mm. bomm. 5mm. 
B. (Holcauchen) tubios. 
Height of Shell .. 14 mm. 14 mm. 13°5mm. 
Max. diameter... 3Hmm. 315mm. 3 mm. 
Height of mouth .. 3. mm. 25 mm. 2°5mm. 
Max. diameter... 7am. 2: mm, 2 mm. 
Family CYCLOPHORIDAE. 
19. Ptychopoma delavayanum (Heude). 
1890. me, aig ate Heude, op. cit., p. 127, Plate XXXVI, 
s. 8, 8b. 
1902. Plychopoin delavayanum, Kobelt, Cyclophoridae in Das Tierreich , 
x‘ ied in 
them), rn the gorge of “ Se north of Sha-wa-tsun ere 200 
feet), from the canyon of the Mekong jn vinden oo from the gorge 
in granite above Yangtsa fr 000-7 590 feet). 1-10. v 
In most of the specimens the peristome is ae well devel- 
‘oped than it is figured by Heude. The radula, which has been 
extracted for me by Dr. Baini Prashad, is that of a normal 
Ovelophorid. 
The species was described from Tali-fu in Yunnan. 

