120 OCINEBRA. 



M. PURPUROIDES, Bunker. PL 36, fig. 418. 



Whorls slightly shouldered, wide, with numerous ribs and re- 

 volving raised lines ; yellowish', with a pale brown band ; aperture 

 large, canal short, open. Length, -5 inch. 



Cape of Good Hope. 



Except in the canal being open, much resembles M, Edwardsi, 

 var. mix. It also looks like an immature Triton labiosum, Wood. 



M. PLEUROTOMOIDES, Reeve. PL 36, fig. 406. 



Shell somewhat shouldered, with numerous crispate varices, 

 crossed by revolving ridges ; lip toothed within, columella with 

 two or three tubercles, canal moderate, open. 



Length, '5 inch. 



Hab. unknown. 



Reeve does not state whether the columellar tubercles are the 

 remains of revolving teeth or not ; if they are, the species will 

 be better placed in the genus Peristernia. 



M. B^TICUS, Reeve. PL 36, fig. 421. 



Shell dark purple-brown, purple within ; varices about eight, 

 narrow ; crossed by revolving ribs ; whorls a little shouldered ; 

 canal short, closed ; lip toothed within. 



Length, '7 to -85 inch. 



Hab. unknown. 



Reeve's figure represents a shell with numerous varices, cor- 

 responding with specimens before me ; his description, however 

 distinctly states that it has three varices. 



M. INGLORIUS, Crosse. PL 36, fig. 419. 



Narrower, thinner and darker colored than M. Edwardsi, Payr ; 

 its mouth is also proportionally smaller, it has ribs instead of 

 varices, and its six whorls are less rounded and slightly shoul- 

 dered. Brown purple, purple within. Length, "15 inch. 



Hab. unknown. 



M. CONFUSA, Brazier. 



Pyriformly ovate ; spire short, sharp pointed ; whorls five and 

 one-half, five varicose, varices laminated, interstices crossed by 

 four laminated ribs, forming hollow pits ; last whorl somewhat 

 smooth below ; aperture round-ovate, lip denticulated ; canal 



