32 THK NAUTILUS. 



layer deep MS tightly as tliey could possibly be crowded together, all 

 headed downward. All in the hole were adidt specimens. The 

 lateral ones had wedged themselves in underneath the ones forward 

 of them until they were seemingly forced to the bottom of the hole, 

 and there became an immovable mass, as there would be no other 

 way of escape but to back out, which the lateral ones were not in- 

 clined to do, but on the other hand were anxious to go ahead. With 

 the water bubbling up through the space left in the center of the 

 hole, the shells had become very smooth and shining. With a stick 

 I dug down about fourteen inches and gathered about a pint of shells 

 from the walls, and a great number fell down the hole. I do not 

 know how much further it extended as it tilled with dirt and shells 

 from my interruption. About a month later I returned to get some 

 of the water for analysis, but it had ceased to flow and dried up ; 

 recently dead shells were very plenty all around. I scraped up a 

 cigar-box full more of them. My impression would be that the 

 water, either from its cool temperature or some appetizing ingredient, 

 was the attraction. I have been sorry ever since that I did not give 

 it more thought at the time. The figure in the upper right-hand 

 corner, while not artistic, serves to show the manner in which the 

 shells were adhering to the walls of the hole ; the density of the 

 mass is not over-illustrated in the least, if any difference they were 

 even more tightly arranged than illustrated ; there was not a space 

 in which a shell could possibly move. 



DESCRIPTIONS OF NEW JAPANESE LAND SNAILS. 

 BY H. A. PILSBRY AND Y. IIIRASK. 



Eulota (Euhadra) irrediviva n. sp. 



Shell urnbilicate, resembling E, mercatoria, but very much move 

 depressed. Sculpture of fine growth-lines, minute scattered papillae, 

 and densely crowded, very fine spiral stria: ; the surface rather 

 glossy. The specimens are fossil and have lost color except a dull 

 reddish band above the periphery and sometimes another below it. 

 Whorls o, the apical one rather large, the last whorl double the 

 width of (lie preceding, slightly subangular in front, only a trifle de- 

 scending to the aperture. The aperture is oblique, wide and low, 

 the upper and basal margins subparallel ; lip reflexed and recurved, 

 the basal lilt noticeably straightened. Alt. 21, diam. 36 mm. 



