CANTHARUS. 155 



C. ERYTHROSTOMA, Reeve. PI. 73, fig. 246. 



Yellowish brown, the ribs stained with chestnut or chocolate ; 

 margin of aperture and columella orange or red. 



Length. 1/25 to 1/5 inches. 



Ceylon; Japan. 



The more rounded whorls, deeper sutures and slighter sub- 

 stance, as well as the coloration, distinguish this from the following 

 species. C. fumosus sometimes has a yellowish lip also, but 

 generally, on good specimens, there is a light revolving band, 

 which is barely indicated upon erythrostoma. 



C. FUMOSUS, Dillw.- PL 73, figs. 247-255. 



Yellowish orange or light brown, the longitudinal ribs chestnut 

 or chocolate, usually a revolving white band below the periphery ; 

 lip and columella sometimes stained with yellow. 



Length, 1 to 1*25 inches. 



Red Sea ; Ceylon ; Singapore ; Philippines ; Japan ; 



Australia; Polynesia. 



Buccinum strigosum, Gmelin has priority, but the name is not 

 adopted because he included two species in his description. The 

 principal recent synonyms are C. Proteus, Reeve (figs. 247-249) 

 and C. undosus, Kiener and Quoy (not Linn., fig. 250). 



Var. RUBIGINOSUS, Reeve. PI. 73, fig. 251. 



Tliis is a narrower form, with more elate spire ; orange brown, 

 white banded, usually not darker on the ribs. Its metropolis is 

 the Red Sea, whence it extends throughout the Indian Ocean 

 into Polynesia, merging into the typical fumosus. One of these 

 slight variations has been called C. subrubiginosus, by Mr. E. A. 

 Smith (fig. 252), and conies from Japan. The specimen figured 

 is not fully adult. Other species, founded on the narrow variety 

 are C. biliratus, Reeve (fig. 253), from Galapagos and Yiti Is- 

 lands, and C. nigricostatus, Reeve (fig. 254), said to come from 

 Panama, which I doubt. Pisania Desmoulinsi, Montrouzier (fig. 

 255), from New Caledonia, is synonymous also. 



C. CARINIFERUS, Kuster. PL 73, fig. 256. 



Described by Krauss as C. rubiginosus, from which it differs 

 in the ribs being obsolete and the spiral striae well developed on 

 the body-whorl. Mjirtons and Kobolt have placed it in Gomi- 



