MARGINKhLA. 1.7 



Typical Group of M. glabella. 



M. GLABELLA, Linn. PI. 5, figs. 57, 58. 



Polished, reddish or reddish brown, darker at the suture, with 

 irregular flecks of opaque white ; lip yellowish brown. 



Length, 1-52 inches. 



West Coast of Africa ; Canary Islands. 



Fossil in the upper tertiary of Italy. One of the most beau- 

 tiful species of Marginella ; occasionally the shell occurs 

 reversed. With this species are to be united Pseudomarginella 

 platypus and leptopus, Carriere (ante p. 6). 



M. POUCHETI, Petit. PI. 5, fig. 59. 



Color varying from that of M. glabella to chestnut-brown, 

 without the white flecks ; as in that species, there are obscure 

 indications of two bands of darker color. Length, 1 inch. 



Senegal. 

 Possibly only a variety of M. glabella. 



M. IRRORATA, Menke. PL 5, fig. 60. 



Pink or yellowish, closely marked by zig-zag lines of minute 

 white spots. Length, '75-1 inch. 



West Africa. 



This also is possibly only a variety of M. glabella, but is 

 smaller, less ventricose, the spire more drawn out, the spots 

 much more numerous and closer, almost forming lines of zig-zag 

 longitudinal direction. 



M. LABIATA, Val. PL 5, tig. 61. 



Rosy white, sometimes very faintly banded ; lip-margin ex- 

 teriorly orange. Length, 1-1-2 inches. 



Campeachy, Yucatan, Brazil. 



M. PYRULATA, Redfield. PL 5, fig. 69. 



Like M. labiata, but more elongated, spire more produced. 



Length, I'l inches. 



Habitat unknown. 



Described by Sowerby as M. obesa, a name preoccupied by 

 Redfield, who changed it as above. The species has not been 

 identified with any living Marginella, since it was described, 

 and I agree with Mr. Redfield that it is possibly a fossil form. 



