310 



PROCEEDINGS OF THE ACADEMY OF 



[Dec, 



is deeply concave; parietal wall rather heavily calloused. The outer 

 lip, in profile view, is almost straight, not arching forward. 

 Length 10, diam. 5, length of aperture with peristome 3 mm. 



Melanella mimus n. sp. Fig. 2. 



Kailua, Oahu, W. A. Bryan. Type No. 117593, A. N. S. P., 

 paratypes in Bryan coll. 



The shell is rather slender, the spire having a distinct double 

 curvature; smooth, white; the suture linear, not impressed. A 

 series of linear varices runs up the right side, spirally receding to the 

 dorsal side as usual. The whorls are almost flat, the last being very 

 obtusely subangular. The aperture is ovate; columella moderately 

 concave, parietal callous thin. The outer lip arches strongly forward. 



Length 5.3, diam. 2, length of aperture 1.5 mm. 

 Melanella kanaka n. sp, Fig. 3. 



Kailua, Oahu, W. A. Bryan. Type No. 117594, A. N. S. P., 

 paratype in Bryan coll. 



The shell is very small, conic, attenuated and recurved in the 

 upper third; smooth, whitish, the suture linear, superficial, broadly 

 gray margined below, the margin defined by a whitish line. A 

 continuous series of impressed, linear varices runs up the right side, 

 receding but little upward. The whorls of the spire are scarcely 



I'lg. 3. — Melanella kanaka. 



convex, the last being moderately convex. The aperture is small, 

 subovate, the inner margin much less curved than the outer. The 

 outer lip arches very strongh' forward, as seen in profile. 



Length 4.2, diam. 1.62, lenglh of aperture 1.45 mm.; about 10 

 whorls. 



