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Show 1888.] MOLLUSCA F R O M B U R M A H . 245 mented with similar zigzag bands at equal intervals, but which extend to the peripheral band ; spire conical, apex fine ; whorls 5 ; aperture subvertical; peristome of a pale yellowish tint, very much thickened to the extent of 4*5 millim. Size: maj. diam. 41*5, min. 320, alt. axis 18*5 m m . 16. CYCLOPHORUS, sp. inc. Locality. Shan Hills. Size : maj. diam. 3T0, min. 25-5, alt. axis 15*0 m m . In form this shell is nearest to C. excellens, Pfr., from Moulmein, particularly as regards the umbilicus and height of spire ; its markings 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. Hlindet, 1200 feet. 18. ALYC-EUS (DIORYX) URNULA, var. Locality. Pirrgoung, 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^EUS SPRATTI, n. sp. Locality. Pingoung, Shan Hills, 2500 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 5j§, 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 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 |