1904.] NATURAL SCIENCES OF PHILADELPHIA. 633 



Kaliella kikaigashimae n. sp. 



Shell imperf orate, thin, pale yellowish, somewhat translucent, 

 glossy; trochiform, the outlines of the spire nearly straight, the periph- 

 ery rounded, and the base convex. Whorls nearly 5, convex, parted 

 by a deeply impressed suture. Aperture broadly crescentic, the colu- 

 mella sub vertical, with reflexed edge. 



Alt. 3, diam. 3.5 mm. 



Kikaiga-shima, Osumi. Types No. 87,578, A. N. S. P., from No. 

 1,063 of Mr. Hirase's collection. 



This species is quite unlike any reported hitherto from the Riukiu 

 Islands. It is much larger than K. bimaris, the most nearly related 

 of the Riukiu species, the color is paler and the aperture a more ample 

 crescent. It is the first Kaliella to be found on Kikaiga-shima. 



Kaliella humiliconus n. sp. 



Shell perforate, amber-colored, somewhat dull above, glossy beneath; 

 conic above the spire with nearly straight, slightly convex lateral out- 

 lines and obtuse apex, the periphery carinate, base convex. Whorls 

 5J, convex, separated by an impressed suture. Aperture truncate- 

 crescentic, the columella vertical, its edge dilated and reflexed. 



Alt. 2.6, diam. 3.6 mm. 



Gokashomura, Ise. Types No. 87,928, A. N. S. P., from No. 1,169 

 of Mr. Hirase's collection. 



This species is closely related to K. sororcula, but is smaller and has 

 a vertical, not sloping columella. It is not so elevated as K. higash- 

 iyamana. 



Kaliella okinoshimana n. sp. 



Shell imperforate, trochoidal, elevated, amber colored, subtrans- 

 lucent, glossy. The outlines of the spire are very slightly convex,, 

 nearly straight. Apex obtuse ; the periphery has a delicately project- 

 ing acute keel, and the base is convex. Whorls 6J, slightly convex.. 

 Suture narrowly margined above. The aperture is squarish-oblong, a. 

 little curved. Columella short, sub vertical, with dilated edge. 



Alt. 4, diam. 4.7 mm. 



Okinoshima, Tosa. Types No. 87,929, A. N. S. P., from No. 1,182 

 of Mr. Hirase's collection. 



This species stands near K. sororcula, but it has a more glossy surface 

 and the columella is vertical. It is a larger and more elevated shell 

 than K. humiliconus. 



Kaliella bimaris n. sp. 



Shell small, subperf orate, brownish-yellow, rather dull above, glossy 

 beneath; trochiform, the outlines of the spire slightly convex, the 

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