92 PROCEEDINGS OF THE ACADEMY OF [1889. 



white, with numerous radii of a darker color, extending from the 

 closed unbilicus to the periphery. 



Alt. 16, diam. 16 ; aperture, alt. 4, breadth 7 mill. 



Habitat, Aura Island, N. Hebrides. 



Obs. I have much pleasure in dedicating this beautiful and 

 unique species to H. B. M. Consul, E. L. Layard, Esqr., of Noumea, 

 N. Caledonia, to whom conchologists are indebted, for many new 

 species from various sections of the world. 



Melania Auroriana, Nobis. PI. V, fig. 4. 



Shell thick, very elongate, ovate conic, decollate ; whorls 10 or 

 more, smooth and slightly convex ; body whorl somewhat inflated ; 

 a few sparse revolving striae at the base, often continued to the 

 apex ; color dark olivaceous, lighter at the apex ; aperture white, 

 ovate, round at base and expanded, a heavy white deposit on the 

 pillar lip. Opercle black, thick, with the polar point very near 

 the base. 



Alt. 56, diam. 14; aperture, alt. 18, breadth 9h mill. 



Habitat, Aurora Island, IS". Hebrides. 



From E. L. Layard, Esqr. 



Melania Schmacheri, Nobis. PI. V, fig. 5. 



Shell attenuately conical, rather thick, color dark greenish, 

 lighter at the suture, decollate; whorls probably 8 or 9, all but the 

 two lower with elevated longitudinal ribs, which are decussated by 

 impressed spiral striae, giving the surface a granulated appearance; 

 the two lower whorls have the incised spiral striae continued from 

 the base with the interspaces smooth ; outer lip sharp and sinuous ; 

 columella with a narrow white deposit and a moderately twisted 

 aperture, oval, white ; opercle sub-triangular, corneous, chestnut 

 brown, with the polar point near the base. 



H. 43, W. 15, apt. 17, W. apt. 15 mill. 



Hab. Hamma Island, near Hong-Kong, China. 



This shell was sent me for 31. cremdaris Desh. by Mr. Schmacher. 

 It is a smaller shell than cremdaris which is from the Philippines, 

 but resembles it somewhat in sculpture. 



Diplomorpha Brazieri, Nobis. PI. V, fig. 6. 



Shell dexal, thin, abbreviately ovate; whorls 4, rounded ; body 

 whorl inflated, more than half the length ; suture well impressed ; 

 umbilicus open ; aperture perpendicular, ovate; lip slightly reflected ; 

 apex and aperture reddish orange; surface with coarse longitudinal 



