

ft/Js 



61 LL 





1901.] 



:NCES OF 



NATURAL SCIENCES OF PHILADELPHIA. 



NEW MOLLTJSCA FROM JAPAN, THE LOO CHOO ISLANDS, FORMOSA AND 

 THE PHILIPPINES. 



BY HENRY A. FILSBRY. 



The discovery of the major portion of the species herein defined 

 is due to the untiring industry of Mr. Y. Hirase, of Kyoto, 

 Japan, whose researches bid fair to surpass those of any previous 

 naturalist in the extent of his additions to our knowledge of the 

 Japanese molluscan fauna. 



Illustrations of the following species will accompany a contin- 

 uation of this paper, now in preparation. 



Eulota succincta var. amblytropis n. 



Differs from succincta in having the peripheral keel obsolete on 

 the latter part of the last whorl, which is quite rounded. Pale 

 yellowish, with a dark reddish-chestnut peripheral band, and two 

 somewhat lighter reddish bands, one a,bove, the other wider, mid- 

 way between periphery and umbilicus. Surface rather smoother 

 than in succincta. 



Alt. 17J, diam. 26 mm. 



Alt. 16, diam. 23 mm. 



Alt. 14, diam. 21 mm. 



Formosa. Coll. A. N. S. P. (No. 78,187), and Univ. of 

 Michigan. 



Eulota Sargentiana n. sp. 



Shell narrowly umbilicate, globose-turbinate, rather thin, 

 slightly shining; light yellowish brown with a narrow red-brown 

 band or line at the periphery, and reddish within the umbilicus. 

 Spire elevated, conic, the apex acute; whorls 6, somewhat convex, 

 slowly increasing, the last angular at the periphery in front, becom- 

 ing rounded on the latter half, rather swollen below, but distinctly 

 flattened around the umbilicus, especially just behind the basal 

 lip. Aperture quite oblique, irregularly lunate ; peristome thin, 

 13 



