32 THE NAUTILUS. 



NOTICES OF SOME NEW JAPANESE MOLLUSKS. 



BY H. A. PILSBRY. 



[Continued from May No., p. 12. ~\ 

 Buliminus Hirasel . sp. 



Shell rimate, cylinclric-conic, rather solid, whitish-corneous or pale 

 reddish corneous, with opaque white streaks and lines. Surface ir- 

 regularly striatulate and very finely though rather irregularly spirally 

 striate. Spire with quite convex outlines, a trifle attenuated near 

 the obtuse apex. Whorls 8, the first slightly convex, following 

 whorls almost jtat, the last one more convex. Aperture but slightly 

 oblique, pale reddish-brown within, ovate ; peristome white, ex- 

 panded, thickened within; columella simply concave, without a fold; 

 parietal callus very thin in the middle, thickened toward the ends, 

 having a low tubercle near the posterior angle. 



Length 19, diam. 9, of last whorl above aperture 8; length of 

 aperture 83 mm. 



Length 19, diam. 8, of last whorl above aperture 7.5; length of 

 aperture 7.6 mm. 



Kikai, Prov. Osumi, Japan (Y. Hirase). 



This species differs from B. reinianus Kob. and andersonianus 

 MlldtF., in the obese form and especially the light coloration. It is 

 much smaller and especially shorter than B. japonicus Mlhlff., which 

 was described from a single beached specimen. B. japonicus while 

 decidedly larger, alt. 28, diam. 11 mm., the aperture 11 mm. long, 

 has a half whorl less (7^), and no mention is made by Dr. v. Mol- 

 lendorff of a tubercle near the posterior angle of the peristome, such 

 as occurs in B. Hirasei. 



It is named in honor of Mr. Y. Hirase, of Kyoto. 



Buli minus extorris var. omiensis n. 



Shell rimate, resembling B. ccmtori in general form, large, solid 

 and dark chestnut brown ; irregularly striate, the strife more or less 

 cut into granules by very irregular spirals. Spire with convex out- 

 lines below, straight above, the last two whorls of about equal diam 

 eter ; apex obtuse. Whorls 8-g-, convex, the last rather compressed. 

 White, somewhat thickened within, the ends connected by a white 

 cord across the parietal wall, thickened into a slight tubercle near 

 the posterior angle. Columella concave below, having a short strong 

 fold above. 



