No.1741. WEST IMERICAU CONES— DALL. 225 



CONUS SANGUINOLENTUS Reeve, 1849. 



Guaymas, Mexico, to the const of Ecuador. 



Reeve named two cones after Cuming. The second one appears 

 on the supplementary plate 8 of his monograph, figs. '277a and 277b, 

 and, of course, the name can not be retained. But on the same plate, 

 fig. 274, he represents a shell differing only from his invalid C. 

 cumingii by having the pinkish color of the sides aggregated in a few 

 vertical streaks. This shell of unknown origin he names < . sanguino- 

 lentus. From the figures it would seem that these two are only color 

 variations of a single species, which will therefore take the name of 

 sanguinolentus. 



The specimen which best represents this species in the collection 

 (Cat. No. 37399) is of the unicolorate type, and was obtained at 

 Guaymas, Mexico. 



CONUS XANTHICUS Dall, new species. 



Off Guaymas, Mexico, at station 3011, in 71 fathoms, sand, 

 U. S. Bureau of Fisheries steamer Albatross. 



Shell biconic, solid, with a low, slightly turrited spire, straight- 

 sides and about ten whorls; surface of the whorls on the spire evenly 

 excavated, smooth, or with two or three faint spiral stria 1 in the chan- 

 nel; periostracum dense, brown, and velvety, except where cleaned off, 

 when the substratum, which is very adherent, may appear polished; 

 suture simple; sides of the shell straight, smooth, with very faint 

 indications of obsolete spiral striation, the stria' rather distant: near 

 the canal there are, as usual, a few r spiral cords; outer lip straight, 

 receding to the sinus at each extremity; ground color of the shell 

 white with broad brownish yellow irregular areas so disposed as to 

 indicate three irregular white spiral areas, one near the canal, one at 

 about the middle of the side, and the third somewhat in front of the 

 shoulder, in another specimen the yellow color is generally diffused 

 and only the (-(Mitral band is obscurely indicated; there is no pattern 

 on the spire. Height of shell, 42; of shoulder, .'!7; maximum diam- 

 eter of shell, 22.5; of canal, 5 mm. 



Two other specimens, probably of the same species, from 7 fathoms, 

 Panama Bay, have the periostracum and coloration of a darker 

 brown. This species appears to be the Pacific analogue of the 



Ant illean ( '. flavescens Gray . 



Type.— Cat. No. 111236, CJ.S.N.M. 



CONUS SCARIPHUS Dall, new species. 



( Ml" Cocos Island, Gulf of Panama, at station 3368, in (ili fat lion is, 



rocky bottom, one specimen with hermit crab, by the U. S. 



Bureau of Fisheries steamer Albatross. 



Shell biconic, attenuated in front, slightly swelling in front of the 



shoulder, which is sharply carinate; spire low, of about eight whorls 



without the (lost) nucleus; the summit of the whorls between suture 



and carina is excavated and smooth; walls of the shell rather thin, 



J'roc.N.M.vol.;5,S— 10 15 



