220 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.38. 



This shell 1ms been generally named C. puncticulatus Hwass, 1792, 

 but Hwass distinctly assigns his shell to the Wesl Indies, and there 

 is little doubt but his account and name relate to a combination of 

 C. papiUosus Kiener, with some Oriental allied form. Our shell is 

 also the (.'. />< rphriis Sowerby, 1857. It lias both smooth and pus- 

 tulose mutations. 



CONUS XIMENES Gray, 1839. 



Gulf of California to Sechura Bay, Peru. 



This shell is of the same general type of coloration as the preceding, 

 which was also called C. ximines by Sowerby in the Thesaurus, and 

 confounded with 0. mahoganihy him. The true C. ximenes is a much 

 larger shell with sparser dotted lineation and pale olive periostra- 

 cum, with but little brown nebulosity. It seems to be extremely 

 rare. 



CONUS CALIFORNICUS Hinds, 1844. 



Farallones Islands off San Francisco, California, to Ballenas 

 Lagoon, Lower California. 

 This very uninteresting little cone is the ('. ravus Gould, ls.">l. 

 The young have a faint brown reticulation of the Textih type, with 

 a spiral lineation of faint brown continuous lines. The adult is 

 bluish white under a. dense brownish periostracum. The largest 

 specimen 1 have seen is about .'!."> mm. in length. 



CONUS BRUNNEUS Mawe, 1828. 



Cape St. Lucas to the Galapagos and (Tipperton islands, and on 

 the mainland south to Manta, Ecuador. 

 This is an irregularly coronated species with a. large area of dark 

 brown nebulosity and continuous darker brown spiral lines. A 

 variety of dwarf proportions with exaggerated coronation, deeply 

 striated fasciole on the spire, and coarse prominent pustulation (the 

 latter rarely occurring on the typical brunnt us) may take the varietal 

 name of pemphigus. It has a length of 26 and a maximum width of 

 17 nun., and was collected at the Tres Marias Islands, west of Mexico. 

 (Cat. No. 37449a I'.S.X.M.) 



CONUS MILIARIS Hwass, 1792. 



Galapagos and Clipperton islands, Ecuador and Peru. 

 This species is intimately related to ( '. hrunneus with which inter- 

 mediate varieties tend to connect it. It differs most conspicuously 

 in its paler color, absence of the brown nebulosity, tendency of the 

 color to arrange itself in spiral bands, and in the spiral lineation which 

 is articulate and not continuous. In the variety tiaratus (Broderip. 

 1833) t he color is more intense and darker, and in st ill another \ ariety 

 brown nebulosity appears, so that it is only by the broken spiral 

 lineation that the form is assignable to miliaris rather than Inn urn it*. 

 Our specimens of ('. miliaris from the Gulf of California are rather 

 pool-, but not hint; about them seems to just ify their specific separat ion 

 from the Indo-Pacilic specimens of which we have a large scries. 



