474 PROCEEDINGS OF THE ACADEMY OF [July, 



reflexed peristome; the right and left margins scarcely converging 

 above, widely separated, connected by a thin, adnate parietal 

 callus. The superior lamella is minute, short and removed from 

 the edge of the parietal callus. It is widely separated from the 

 rather short, spiral lamella. Inferior lamella receding, small, 

 becoming higher inside, extending to a dorsal position. Sub- 

 columellar lamella very deeply immersed, a long pit between it 

 &nd the inferior lamella. There are no plicae. Clausilium want- 

 ing. Length 8.3, diam. above aperture 2.6, length of aperture 

 2.8 mm. 



Tago (A. Adams) (Tako, in western Shikoku, province of 

 lyo) ; Uweno, near Tokyo, and Ujeno (Hilgendorf ) ; Tokyo 

 (Donitz); Takasaki, prov. Kozuke (Y. Hirase, No. 525). 



This species was found by Hilgendorf under the bark of trees, 

 by Donitz in hollow trees. It is viviparous, one specimen I 

 opened containing a young shell. 



Clausilia Eastlakeana Mlldff., of which I have specimens from 

 the original locality, is undoubtedly nearer variegata than any 

 Japanese, species, having the same discontinuous peristome; but it 

 has longer, stronger lamellae, palatal plicae and an Euphaedusoid 

 clausilium. 

 Clausilia (Beinia) variegata var. nesiotioa nov. PI. XXV, figs. 9, 10. 



Whorls 6^; striation stronger than in variegata, the last whorl 

 with fine incised spiral striae. Inferior and spiral lamellae de- 

 cidedly more strongly developed. 



Length 8.3-9.5, diam. 2.7 mm. 



Hachijo Island, off Izu (Mr. Y. Hirase, No. 5256). 



This insular race has slightly less degenerate lamellae than the 

 typical form from Hondo. Some specimens from the outlying 

 Ogasawara (Bonin) Islands, Mr. Hirase' s No. 469, apparently 

 belong" here, though as only young ones have been received, I am 

 not certain of them. 



Section TYRANNOPH^DUSA Pilsbry. 



This section is not allied to Euphcedusa, as I formerly supposed, 

 but to Hemiphcedusa, with which it agrees in the receding inferior 

 lamella, straightly ascending within, and remote from the superior 

 lamella. Whether it will stand as a separate section, or become a 

 subordinate group of Hemiphcedusa, depends upon the emphasis 



