80 THE NAUTILUS. 



lamella? frequently interrupted on the base. Spire very low-conic ; 

 whorls barely 6, slightly convex, slowly increasing, the last a little 

 pinched above and below the peripheral keel. Base much more 

 convex than the spire, flattened and sloping below the keel, swollen 

 towards the middle, obtusely angular around the conic umbilicus. 

 Aperture oblique, irregularly squarish, the peristome white, some- 

 what thickened within, angular at the terminations of the peripheral 

 and umbilical carina?, the upper margin hardly expanded, basal 

 margin expanded, somewhat reflxed, columellar margin a little 

 dilated. 



Alt. 8.5, diam. 17.5 mm. 



Alt. 8.5, diam. 17 mm. 



Kikai, Osumi, in southern Kiusiu (Mr. Y. Hirase). 



This species is closely related to E. trochula (A. Ad.), known 

 only from Tsusima, differing from that species in the much more 

 angular aperture, far flatter spire and more convex base. 

 Trislioplita goodwini vur. suprazonata n. var. 



Shell similar in form to T. goodwini, but with apex obtuse ; thin, 

 somewhat translucent, corneous-brown, paler around the umbilicus, 

 and with a wide white zone bordering the suture, ascending the 

 spire. Whorls 5^. Alt. 9.5, diam. 13.5 mm. 



Ushirokawa, Tosa, Shikoku Island (Mr. Y. Hirase). 



A smaller form, alt. 8.5, diam. 11.5 mm., occurs at Kagoshima, 

 Satsuma, in southern Kiusiu. This variety is more conic than the 

 variety fusca of Gude, which is moreover smaller and without the 

 whitish band above. 



Kaliella symmetrica n. sp. 



Shell minutely perforate, turreted-pyramidal, the spire with convex 

 lateral outlines and blunt, rounded apex; yellowish-corneous; 

 sharply striated above with excessively fine, densely crowded longi- 

 tudinal stria?, which give it the luster of silk, the base glossy, show- 

 ing faint, spaced spiral lines under a high magnification. AVhorls 

 5-^, very convex, the last obsoletely subangular at the periphery, 

 moderately convex beneath, impressed around the perforation. Aper- 

 ture basal, rather narrow, curved, shaped like the middle third of a 

 crescent with the ends cut oflf; outer and basal margins of the peri- 

 stome acute and simple, the columella vertical, its edge triangularly 

 reflexed. Alt. 2.1, diam. 2 mm. 



Kashima, Harima (Mr. Y. Hirase). 



