1921.] Maiiipiir Molluscs. 601 



the receptaculum seminis are contiguous and open in a common 

 slit situated on the right side of the body, below the right tent- 

 acle. 



The jaw is stout and has a deeply concave cutting edge. 

 The margin of this edge is not smooth, but under a low power 

 of the microscope shows small irregularities. The quadrate plate 

 is broad and truncate behind. 



The radula is broad and moderately long. The teeth are 

 normal and do not show any structural peculiarity. The dental 

 formula, however, is 85.15.1,13.85, while in all the other species 

 examined the marginals do not exceed 40. The large number 

 of teeth in a single row may possibly be due to the food requiring 

 a broad radula in order that a sufficient quantity of material maj^ 

 be rasped from the comparatively hard surface of growing leaves. 



Succinea indica, Pfeiffer. 



This species has hitherto been recorded from Kashmir, the 

 Kumaon Hills and the Southern vShan States. It has now been 



Pig. 28. — Succinea iiuiica, Pfeiffer. 

 (a) Jaw. [b) Radiilar teeth. 



found abundantly by Dr. Annandale in the North-West Frontier 

 Province near Peshawar, and in the Punjab at Gurdaspur. In 

 its general habits it resembles S. elegantior. Near Peshawar it 

 was found on decajang reeds in the water of a swamp with very 

 little sub- aquatic vegetation. 



Dr. Annandale's field-book gives the following particulars 

 about the living animal : — 



"Animal as a rule dark in colour, almost black, with white 

 longitudinal lines on the dorsal surface of the exposed parts of the 

 body. Ventral surface of the foot grey, speckled with black, 

 ^lantle with pale spots. Tentacles reduced to small rounded 

 tubercles. Exposed surface irregularly tuberculate. Foot narrow, 

 tongue-shaped, broadl}' rounded in front and narrowly rounded 

 behind. Young individuals paler than old ones." 



The generative organs are slightly different from those of 

 S. elegantior. The penis sac is elongately pear-shaped and acumi- 

 nate distallj-. The prostate is narrowly elliptical. 



