CHICOREUS. 



M. CROCATUS, Reeve. PI. 19, fig. 181 ; pi. 20, fig. 192. 



There are two to three intervariceal ribs, which are more or 

 less nodulous. Surface orange or amber color, white within the 



aperture. Length, 1-5-2 inches. 



St. Thomas, West Indies. 



I had at first arranged this species and its synonym, M. 

 pudoricolor, Reeve (fig. 192), in the synonymy of M. brevifrons, 

 as juvenile specimens ; and I still have doubts of its specific dis- 

 tinctness. The shell, however, appears to be mature, notwith- 

 standing its much smaller size, and the peculiar color is constant 

 in a number of specimens before me. 



M. LACINIATUS, Sowb. PI. 20, figs. 184, 185, 187. 



Closely allied to the well-known West Indian M. pomum, Gmel., 

 but somewhat narrower, smaller, and differs in color. It is 

 brownish, with a tinge of pink, and darker bands, and the aperture 

 is reddish within. Length, 2 inches. 



Red Sea, Philippines. 



M. scabrosus, Sowb. (fig. 187), is a somewhat larger, denuded 

 specimen. 



M. Jickelii, Tapp. (fig. 185), described from a single Red Sea 

 specimen, appears to be the same. 



M. LAQUEATUS, Sowb. PI. 20, fig. 190. 



Varices slightly frondose, with a single intermediate rib. Light 



brown or yellowish. Length, 1 inch. 



Hob. unknown. 



Possibly a variety of M. fasciatus, Sowb. of which I have 

 specimens before me nearly as narrow in form, and which is oc- 

 casionally also three variced. 



M. ANGISTOMA, Kuster. PL 20, fig. 189. 



Described as having a single tubercle between the varices, al- 

 though the figure shows two. Whitish, the revolving ribs brown. 



Length, -8 inch. 



Hdb. unknown. 



Possibly a worn specimen of M. fasciatus. 



M. POMUM, Gmel. PI. 20, figs. 182, 188. 



I end the series of Chicoreus with this species, which in form 

 approaches nearest to the more numerously variced section Phyl- 

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