1908.] NATURAL SCIENCES OF PHILADELPHIA. 597 



faint traces of spiral striae may be seen in some places, and on the base 

 of the last whorl these incised spirals sometimes become distinct. 

 The suture is white-edged. 



Alt. 8.7, greater diam. 15, lesser 13.2 mm. 



Yaku-shima (Osumi), types No. 85729 A. N. S. P., from No. 1081 

 of Mr. Hirase's collection. It also occurs on Kuchinoerabu-shima 

 (Osumi). 



Kaliella gudei mutsuensis n. subsp. 



The shell is perforate, conic, having an acute peripheral keel, visible 

 on the spire as a thread in the suture; irregularly striatulate and glossy. 

 Whorls 4f to 5, convex. Aperture lunate, truncate at the ends. 

 Columellar margin vertical, slightly thickened, reflexed at the insertion. 



Alt. 3.3, diam. 4.7 mm. 



Osoreyama, Mutsu. Types No. 96178 A. N. S. P., from No. 1445 of 

 Mr. Hirase's collection. 



This form differs from K. gudei by the number of whorls and much 

 smaller size. The whorls are more convex than in K. ceratodes (Gude), 

 and the columella is less calloused. In K. koshinoshimana the M'horls 

 are more closely coiled. K. g. 7nutsuensis differs from K. sororcida 

 by its vertical columella, that of K. sororcula being oblique to the shell- 

 axis. 



Kaliella subcrenulata satsumaua n. subsp. Fig. 3. 



A form decidedly larger than K. subcrenu- 

 lata. Under the compound microscope there 

 are seen to be fine thread-like vertical striae 

 on the upper surface and on a band below 

 the periphery. The rest of the base is glossy, 

 but shows a few fine spiral lines. 



Alt. 2.3, diam. 3.25 mm. Fig. 3. 



Yamakawa, Satsuma. Types No. 96176 

 A. N. S. P., from No. 1593 of Mr. Hirase's collection. 



Kaliella longissima n. sp. Fig. 4. 



The shell is minutely perforate, conic-turrite, with nearly straight 

 lateral outUnes and obtuse summit; pale yellowish, subtransparent. 

 Surface glossy, almost smooth. Whorls 9^, very slowly increasing, 

 moderately convex, the last rounded peripherally, though there is a 

 very delicate thread-like keel. Base convex. Aperture semilunar, 

 the columella vertical, with reflexed edge. 



Alt. 4.25, diam. 2.3 mm. 



