MARGINELLA.— Plate XV. 



imiiiersa, aufraclibus superne //ibbosiusculis, columella 

 fiuadriplicatd. 



The akrow-headeu Mauginella. Shell obtusely 

 ovate, whitish, copiously encircled with reddish 

 aiTow-headed spots, spire immersed, whorls rather 

 gibbous round the upper ])art, columella four-plaited. 



Hinds, Pro. Zool. Soc. 1844., p. 76. 



Hob. Brazil. 



The markings in this species, which ai'e very profuse, 

 have an arrow-headed character, but they are disposed to 

 be riiiiifd, runnin"; n little into one another. 



Species 71. (ilus. Taylor.) 



ilAllGlNELLA FRDMENTUM. Mary, ieald obluai ovald, 

 albidd, liiieis feri'uyineo-riijis longitudiiiuliter cojtiose 

 undatd, spird immersd, uiifriictibnis siijjerni yibbosis, 

 colmiielld qnadriplicald. 



The cokn Margixella. Shell obtusely ovate, whitish, 

 copiously longitudinally waved with rust-red lines, 

 spire immersed, whorls gibbous round the upper part, 

 columella four-plaited. 



Sowerby, Pro. Zool. Soc. 1832, p. .)7. 



Hab. West Indies. 



The nuirkiug, which has obscurely the form of baucU of 

 rings, runs into longitudinal waves. 



