THE NAUTILUS. 69 



whorls carinate, the keel visible above the suture ; first half whorl 

 nearly smooth, the next two whorls sculptured with regular, slightly 

 arcuate ribs, at first rather coarse, becoming finer to the end of the 

 embryonic shell, which comprises 2^ whorls. Whorls 5^, convex, 

 the last swollen below the deeply impressed suture, ventricose, 

 tapering below. The aperture is rather long and narrow, slightly 

 oblique, white within. Peristome slightly thickened close to the 

 edge. Columellar lamella of moderate size, thin and spiral, white ; 

 parietal caUus thin. 



Length 13.1, diam. 7.7, length of aperture 7 mm. 



Length 13.4, diam. 8.1, length of aperture 7.1 mm. 



Mt. Helu, West Maui. Cotypes in coll. Bishop Museum and 

 Acad. Nat. Sciences. Also in Mr. Thaanum's collection. 



While sinistral species are common in Achatinella and Partulina, 

 they are very rare in Amastra. Outside of the section ffeteramastra, 

 only two have been published, Amastra thaanumi Pilsbry and A. 

 montagui Pilsbry, both from Oahu. 



ON CYPRJEA MILIARIS GMEL., WITH DESCRIPTIONS OF NEW 



VARIETIES. 



BY MAXWELL SMITH. 



C. MILIARIS Gmel. Syst. Nat., p. 5420, 1790. 



Roberts' description in the Manual of Conchology, vol. vii, p. 192, 

 is as follows: " Differs from the preceding (lamarcki) in being nar- 

 rower, the dorsal spots are smaller and never ocellated, and the sides 

 are white." Melvill writes that the spots " are never eyed, or, at all 

 events, extremely rarely." This and all of the varieties are pitted 

 at the sides. Japan, Philippines, N. S. Wales. 



C. MILIARIS Gmel. var. MAGISTRA Melvill. Proc. Manchester 

 Literary and Philosophical Society for 1888, p. 227. 



" Characters the same as in the type, but teeth very well developed, 

 and size, long. 2, lat. l inch. . . . It is a handsome shell, and in 

 fine condition it slightly resembles C. guttata on dorsal surface only." 

 Habitat, Japan. 



