1882.J MR. SOWERBY, JUN., ON NEW SPECIES OF SHELLS. 117 



3. Descriptions of new Species of Shells in the Collection 

 of Mr. J. Cosmo Melvill. By G. B. Sowerby, Junr. 



[Eeceived December 30, 1881.] 

 (Plate V.) 



CoNUs PRYTANis. (Plate V. fig. 1.) 



Shell somewhat pyriform, lightish brown, here and there longi- 

 tudinally streaked with darker brown, encircled with a well-defined 

 narrow pale band below the middle ; spire short ; whorls 9, smooth, 

 the upper ones sloping, the rest squarely turreted, with bold whitish 

 tubercles at the angles, banded with dark brown between the tuber- 

 cles ; last whorl slightly rounded at the upper angle between the 

 tubercles, faintly ribbed towards the base. Aperture of moderate 

 width, nearly equal at both ends, light purple within. Lip thin, 

 with scarcely any sinus at the upper extremity. Length 35, width 

 at the angle 20 millim. 



Hab. Galapagos Islands. 



In looking over Mr. Melvill's fine collection of Cones in October 

 last, he called my attention to this shell, which he had obtained in 

 1873 at the sale of the late Thos. Norris's collection, and to which he 

 had given in manuscript the above name, not having been able to 

 identify it with any known species. I have since compared it with 

 C. lividus (Brug.), which it resembles in colour, but from which it 

 differs materially in form, being much shorter, with convex sides, 

 slightly contracted at the base. It differs also from that species 

 in the character of the crown, the tubercles being more clearly de- 

 fined and elevated than in any specimen of C. lividus with which I 

 have met. Its next ally is C. brunneus (Mavve), the whorls of the 

 spire of which species are distinctly grooved, whereas in this they are 

 smooth. It differs also from that species somewhat in form, and in 

 the whitisli band with which it is encircled. The shell it is most 

 like in form and coronation is C, i iaratus (Brod.), which is a species 

 far removed from it in colour and markings. 



Upon searching the British-Museum collection, Mr. Edgar A. 

 Smith drew my attention to three specimens similar in every respect 

 to Mr. Melvill's shell, and undoubtedly of fhe same species, marked 

 " Galapagos, sandy mud (H. Cuming)." They had been mistaken 

 for a variety of C. brunneus. 



CoNus EVELYNS, sp. nov. (Plate V. fig. 2.) 



Shell elongately pyriform, pale yellow, striped with light brown, 

 encircled with an interrupted whitish band ; spire rather short ; whorls 

 flattened, with four spiral grooves, coronated with elongated flattened 

 tubercles at the angle ; apex prominent ; last whorl very faintly 

 striated, rather convex below the angle, and slightly attenuated 

 towards the base. Aperture rather narrow, a little widened towards 

 the base, interior white. Length 28, width at the angle 14 millim, 



