114 CEROSTOMA. 



M. phyllopterus, Lam. (fig. 3*73), is perhaps the same species; 

 but does not appear to have been properly recognized by either 

 Keeve or Sowerby. 



M. BURNETTI, Adams and Reeve. PI. 34, figs. 367, 368. 



Pale fawn-color, with numerous whitish undulating streaks, 

 within the aperture purplish red with whitish stripes ; labral 

 tooth very large, the inner side excavated, instead of being 

 convex as in M. foliatus. 



Mr. E. A. Smith calls attention to the revolving ribs being not 

 very prominent on the whorl, but becoming very strong on the 

 varices, which thus become digitate ; he also mentions distinct 

 protuberances on the central revolving ribs between the varices, 

 which he says are not found on M. foliatus. They are so found, 

 however, and very distinctly so, too, on Sitka specimens of the 

 latter now before me. I add to the original figure a much better 

 one from Sowerby 's Thesaurus. 



M. COREANICUS, A. Adams. PL 34, fig. 316. 



Ovately fusiform, light fuscous, sparsely maculate with chest- 

 nut ; whorls nearly smooth, obsoletely lirate ; varices foliated, 

 crenate, reflexed ; a single variceal node ; lip tuberculate within, 



with an anterior produced tooth. Length, 2 inches. 



Core' i. 

 Too closely allied to M, monachus, Crosse. 



M. PLORATOR, Adams and Reeve. PI. 34, fig. 369. 



Chestnut brown, with a white band in the middle. Length, 



1-5 inches. 



Corea. 



Perhaps young of M. Burnetti ; it possesses the same angulate 

 periphery and inferior excavation. 



M. BRACHYPTERON, A. Adams. 



.Ovately fusiform, light fuscous, sparsely maculate with chest- 

 nut and with a central white band ; whorls crossed by longitudinal 

 and revolving crenulated lines ; margin of aperture fimbriated ; 

 canal closed, recurved. The winged varices shorter than in the 



allied forms. 



Uraga, Japan ; 12 fathoms. 



Appears to be closely allied to M. plorator, above. 



