32 CKYPTOSPIKA. 



The upper fold of the columella is minute, sometimes not 

 present, and this shell, as well as the next, are referred to the 

 present section with some doubt. 



M. PR^ECALLOSA, Higgins. 



An unfigured species, yellowish white, linearly strigate, and 

 with two distant bands ; colnmella five-plaited, lip callously 

 reflected, flexuously plicate within. Length, 25 mill. 



Habitat unknown. 

 M. OBLONGA, Swainson. PL 9, figs. 78-80. 



Flesh-color, obscurely broadly banded with a darker tint, and 

 bearing two chestnut spots on the outer lip ; sometimes slightly 



necked with white. Length, '8-1 inch. 



Bahamas and Yucatan. 



Is more attenuated than the next species, which it neverthe- 

 less so closely resembles in its occasional flecked coloration and 

 in having the two spots on the lip, as to suggest community of 

 origin. Mr. Red field has proposed the names M. amabilis (fig. 

 79), and M. rostrata (fig. 8(P, for what appear to me to be only 

 slight variations of this species : the latter has been indepen- 

 dently described by Jousseaume as M. canella. 



M. GUTTATA, Dillwyn. PL 9, fig. 81. 



Flesh-colored, obscurel}* broadly banded with a darker tint 

 over which are irregular snow-white flecks ; outer lip and base 

 bearing from two to five brown spots or short stripes. 



Length, -65-'9 inch. 



West Indies, Florida, Beaufort, N. Carolina. 



See remarks on preceding species. 



M. NIVOSA, Hinds. PL 10, figs. 84, 85. 



Pale flesh-color, obsoletely banded, with narrow longitudinal 

 strigations and fleckings of white ; lip without spots. 



Length, *5-'75 inch. 



West Indies. 



With this must be united M. pruinosa, Hinds (fig. 85), and 

 M. nivea, C. B. Adams the latter an unfigured species, founded 

 on small specimens. M. punctidata, Petit, is an unfigured species 

 from Senegal, which has not been identified heretofore ; the 

 description agrees well enough with nivosa. If it could be posi- 

 tively identified it would have priority over nivosa. 



