188S.] MOLLTJSCA FROM BURMAH. 2-45 



mented with similar zigzag bands at equal intervals, but which do not 

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

 aperture subvertical ; peristome of a pale yellowish tint, very muci) 

 thickened to the extent of 4"5 millim. 



Size: maj. diam. 41'5, min. 320, alt. axis 18'5 mm. 



IG. Cyclophorus, sp. inc. 



Locality. Shan Hills. 



Size : maj. diam. 31*0, min. 2.o'5, alt. axis 15"0 mm. 



In form this shell is nearest to C. excellens, Pfr., from M')ulmein, 

 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 fiesh condition is required 

 for these shells, so variable in colour. 



17. Pterocyclos albersi. 

 Locality. Hlindet, 1200 feet. 



18. Alyc^us (Dioryx) urnula, var. 

 Locality. Pingoung, Shan 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^us spratti, n. sp. 



Locality. Pingoung, Shan Hills, 2.500 feet. 



Shell pyramidal, closely umbilicated ; sculpture very fine close 

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

 colour white, with pale lemon tinge, or horny ; spire high, rapidly 

 decreasing to apex, which is rather pointed ; suture well impressed ; 

 whorls 5|, convex, the last swollen, slightly constricted at the 

 sutural tul e, 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 diifeient in form, and not so 

 simple and circular. 



20. Paludomus ornatissima, Bs. 

 Locality. Between IMyingyan and Hlindet. 



21. Melania, sp. inc. 



A specimen in bad broken condition. 



22. Ampullaria palxjdinoides, 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.^¥^Jt^-^ 18 



