THE NAUTILUS. 31 



Figs. 4-6. A. kirklandi (var.), Tuscawaras R., New Philadelphia, 

 Ohio. 



Figs. 7-9. A. kirklandi (var.), Roaches Run, opp. Washington, 

 D. C. 



Figs. 10-12. J. ^VHffnrft (var.), Roaches Run, opp. Washington, 

 D. C. 



Figs. 13-15. A. diaphanus Hald., Ohio R., Edgeworth, Pa. 



Figs. 16-18. A. diajihanus Hald., Ohio R., Edgeworth, Pa. 



Figs. 19-21. A. peninsulce P. & J., Volusia Co., Fla. 



DESCRIPTIONS OF NEW JAPANESE LAND SHELLS. 



BY H. A. PILSBRY AND Y. HIRASE. 



Japonia sadoensis n, sp. 



Shell umbilicate, conic, dull dark brown ; sculpture of very deli- 

 cate, thread-like oblique striae, widely and irregularly spaced, and 

 numerous regularly spaced spiral cuticular threads, which bear rather 

 long hairs, very easily rubbed off, being preserved only on the latter 

 part of the last whorl in some specimens, wholly lost in others. 

 Whorls 4^, very convex, the last tubular. Aperture oblique, circular, 

 the peristome thin, continuous, in contact with the preceding whorl 

 for a very short distance above ; coiumellar margin slightly expanded. 

 Alt. 4, diam. 4.7 mm. 



Niibo-mura, Sado. Types no. 84768 A. N. S. P. 



This species is clearly distinct from J. barbata and cithareUa Gld., 

 described from Oshima in the Riukiu group, and J. musiva Gld., of 

 unknown locality. Dr. von Mollendorff has recognized Gould's 

 /. barbata in specimens collected by Mr. F. W. Eastlake in the 

 Hakone mountains (Journ. Asiat, Soc. Beng. liv, 1885, p. 67) ; this 

 gives another Jaiwinese locality for the genus, but in view of the 

 geographic separation, I think that the Hakone form will prove dif- 

 ferent from that described by Gould from Oshima. 



Chloritis tosanus n. sp. 



Shell umbilicate, slightly convex above, convex beneath, very 

 thin, fragile and chestnut-brown; densely sculptured with very short, 

 darker, curved hairs, arranged in oblique lines as usual, but a little 



