188S.J MOLLUSCA FROM BURMAH. 245 



mented with similar zigzag bands at equal intervals, but which do uot 

 extend to the peripheral band ; spire conical, apex fine ; whorls 5 ; 

 aperture subvertical ; peristome of a pale yellowish tiut, very much 

 lliickened to the extent of 4"o millim. 



Size: mMJ. diain. -11-5, inin. 32"(), alt. axis 18'5 mm. 



16. Cyclophorus, sp. inc. 

 Locality. Shan Hills. 



Size : maj. diam. 31 "0, niin. ■25-5, alt. axis lo'O mm. 



In form tliis shell is nearest to C. excel/ens, Pfr., from Moulmein, 

 particularly as regards the umbilicus and height of spire ; its mark- 

 ings differ, and the size is much smaller. I hesitate to name this 

 single specimen ; a series of examples in fresh condition is required 

 for these shells, so variable in colour. 



17. PtEROCYCLOS ALBERSI. 



Locality. HUndet, 1200 feet. 



18. Al'^c^us (Dioryx) urnula, var. 

 Locality. Pingoung, Shnn Hills, 2500 feet. 



The only difference between this and the Assamese form is the 

 greater length of the sutural tube in the Burmese shell. 



19. Alc^xjs sphatti, n. sp. 



Locality. Ping mg, Shan Hills, 2500 feet. 



Shell pyramidal, closely umbilicated ; sculpture very fine close 

 costulation, more distant between the sutural tube and the peristome ; 

 colour white, w'^th pale lemon tinge, or horny ; spire high, rapidly 

 decreasing to a^jex, whicb is rather pointed ; suture well impressed ; 

 whorl? 5|, convex, the last swollen, slightly constricted at the 

 sutura' tuhe, which is very short and thick, less than one millim. in 

 length ; the whorl swells again to the aperture, this is circular, 

 oblique ; peristome double, slightly reflected ; operculum not seen. 



This species is quite new ; it might be at first taken for a small 

 variety of A. pyramidalis, Bs., from the Tenasserim valley, but the 

 sutural tube is in that species very thread-like and nearly 3 millim. 

 in length ; the aperture is also very different in form, and not so 

 simple and circular. 



20. Paludomus ornatissima, Bs. 

 Locality. Between Myingyan and Hlindet. 



21. Melania, sp. inc. 



A specimen in bad broken condition. 



22. Ampullaria paludinoides, Phil., var. 

 Locality. Khyang-nyat. 



The present example agrees with a specimen in my collection from 

 Pegu. 



23. Ampullaria olea. Reeve. 

 Locality. Shan Hills. 



Proc. Zool. Soc— 1888, No. XVIII. 18 



