598 PROCEEDINGS OF THE ACADEMY OF [DeC, 



Sasuna, Tsushima. T5rpes No. 96177 A. N. S. P., from No. 1556 of 

 Mr. Hirase's collection. 



This is the most lengthened Japanese Kaliella 

 known to us, being much longer than K. prcealta. 

 The Indian K. elongata G.-A. has about the same 

 proportions, but differs by its strongly keeled last 

 whorl, the convex outhnes of the spire, etc. 



KalioUa boninensis n. sp. 



The shell is perforate, depressed, the spire con- 



vexly conoidal, with obtuse, rounded summit, base 



convex, the periphery angular; brown. Surface 



rather dull above, more glossy beneath ; first half 



whorl smooth, next whorl sharply striate and 



Fig. 4. decussated with fine spiral lines ; following w^horls 



are densely, finely and sharply striate, with very 



faint traces of spiral hues in places; the base is smoothish, but not much 



polished; showing faint traces of spiral lines in places. Whorls 3f, 



moderately convex. 



Alt. 1.75, diam. 2.66 mm. 

 f ■ Anijima. Ogasawara (Bonin Islands). Types No. 95867 A. N. S. P., 

 from No. 1500 of Mr. Hirase's collection. 



This small species is not closely related to any known Ogasawaran 

 or Japanese form. Whether it really belongs to Kaliella is perhaps 

 doubtful. 

 Sitala ultima n. sp. 



The shell is perforate, conic, with the last whorl large; very fragile, 

 amber colored, rather shining, with a silky luster above, more glossy 

 below. Sculpture of excessively fine, close vertical strisB decussated 

 by very delicate spirals, the base having engraved spiral lines. The 

 spire is straightly conic. Whorls 4^, convex, the last angular at the 

 periphery in front, becoming inflated and rounded in the last half. 

 Base rather convex. 

 Alt. 2.3, diam. 2.9 mm. 



Kaminoyama, Uzen. Types No. 95908 A. N. S. P., from No. 1443 

 of Mr. Hirase's collection. 



This delicate snail is smaller than the related S. reinhardti, and has 

 much more distinct microscopic sculpture. It lives farther north than 

 any other known Sitala. 

 Ena luchuana nesiotica n. subsp. 



The shell is rimate, very thin, purplish-hrowyi, more or less flecked 

 with yellow on the upper whorls, by incipient disintegration of the 



