MARGINKIiLA. It 



Typical- Group of M. (/lobelia. 



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



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



irregular flecks of opaque white ; lip yellowish brown. 



Length, l'5-2 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 Pi<eudomarginella 

 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. 



Se7iegal. 



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 31. 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, fig. 61. 



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

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



Campeachy, Yucatan, Brazil. 



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



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



Length, 1*1 inches. 

 , Habitat unknown. 



Described b}^ Sowerb}'^ as M. obesa, a name pi'eoccupied 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. 



