54 



PROCEKDINGS OF THE MALACOLOGICAL SOCIEIY. 



(Fig. a) consists of : first a thin bilobed horizontal fold near the upper 

 suture ; next, two horizontal rather thin elevated folds, followed by- 

 two stouter and rather less elevated folds, obliquely ascending 

 towards the mouth ; and lastly, a thin horizontal fold near the lower 

 suture, longer than the others and gradually attenuated anteriorly; 

 all, except the first fold, are provided posteriorly with a slight 

 denticle, while a low transverse ridge unites their posterior 

 terminations. Fig. c gives the posterior view of the parietal and 

 palatal barriers. Diam. niaj. 12, min. 10 mm. ; alt. 475 mm. 



Mab. — E. Burma: Kengtung (Woodthorpe). 



Type in the British Museum, presented by Lieut. -Col. H. H. 

 Godwin-Austen. 



c h 



Three specimens in tlie Godwin-Austen Collection, British Museum, 

 were found upon examination to be closely allied to P. nagaensis, G.-A . 

 The new species, however, is more depressed, and laclvs the spiral 

 sculpture of its ally, which also has the barriers placed nearer the 

 aperture, and the third, fourth, and fifth palatal folds more oblique, 

 while kengtunc/ensis possesses a short horizontal median fold which is 

 absent in nagaensis. It also resembles P. muspratti, Gude, in having 

 the palatal folds united posteriorly by a low ridge and in having the 

 barriers at the same distance from the aperture, but in the latter 

 species the palatal folds are much shorter and stouter, and it lacks the 

 long horizontal parietal fold as well as the short median told, being 

 only provided with a short fold at the aperture. 



ChLORITIS (TrICUOCHLOKITIS) LEITHI, U.Sp. 



Shell rather widely umbilicnted, depressed-conoid, thin, transparent, 

 corneous, with a narrow chestnut supra-peripheral band, finely 

 plicate-striate, somewhat sparsely covered with soft hairs placed in 

 pits and arranged in quincunx. Spire low, apex sunken, suture deep. 

 Whorls 4, convex above, tumid below, increasing rapidly, the last 

 exceeding in width the total of the other three, dilated at the mouth, 

 not constricted behind the peristome, shortly but deeply descending 

 in front, sub-angulated around the umbilicus, which is rather wide 



