1905.] NATURAL SCIENCES OF PHILADELPHIA. 705 



NEW LAND MOLLUSKS OF THE JAPANESE EMPIRE. 

 BY H. A, PILSBRY AND Y. HIRASE. 



A number of new forms chiefly collected by Mr. Nakacla in Kyushu 

 and the Ryukyu chain last winter are herein described. In work- 

 ing up these islands many hardships and dangers were encountered, 

 not the least being the abundance of venomous snakes locally called 

 "Hahu." The malacological results have been most gratifying, as we 

 now have a fair knowledge of the snails of all the larger islands and 

 many of the smaller ones. Mr. Nakada has now been sent to China. 



OYCLOPHORIDJE. 



Cyclophorus turgidus miyakoensis n. subsp. 



This form differs from C. turgidus by its wider umbilicus, smaller 

 aperture, slightly expanded and obtuse but not thickened lip, which 

 is white. It differs from C. kikaiensis by the non-duplicate peristome 

 and large size. It is related also to C. elegans Mlldff., from the Mar- 

 ble Rocks, Kuang-tung, China. The coloration varies from yellow- 

 ish-white with numerous spiral lines and bands of brown spots, to 

 dark chestnut brown with interrupted, irregular whitish bands on the 

 base and whitish flames below the suture. 



Alt. 17.5, diam. 22 mm. ; aperture 11x11 mm., including peristome. 

 Miyako, in the Southwestern group of the Ryukyu Islands. Types 

 No. 85,886, A. N. S. Phila., from No. 983 of Mr. Hirase's collection. 

 Pupinella oshimae yorojimana n. subsp. 



Shell similar to P. oshimce, but smaller, with the lip reddish-orange. 

 Length 9.2 to 9.8, diam. 4.3 to 4.8 mm. 



Yoro-jima, Osumi. Types No. 89,951, A. N. S. Phila., from No. 

 1,214a of Mr. Hirase's collection. 

 Cyclotus taivanus peraffinis n. subsp. 



Shell similar to C. taivanus, but with the last whorl a more slender 

 tube, the aperture in consequence being smaller. Surface glossy, 

 finely striatulate vertically; yellow, closely marked with irregular, often 

 interrupted or dislocated narrow red-brown streaks. 



.\lt. 8.5, diam. 14; alt. and diam. aperture with peristome 5.7 mm.; 

 width of umbilicus 4.5 mm. 

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