Gray on Helicina 67 



6. Helicina costata. 



Testa depresso-ovata, lutea, spiraliter striato-costata, spira 

 coiiica, subtus subcouvexa ; peristomate incrassato subreilexo, 

 luteo, labiis subincrassatis. 



Shell, depressed ovate, yellow^, spirally rib-striated, ribs convex, 

 those of the upper part broadest, becoming smaller and closer 

 near the columella, spire conical, acute, beneath subconvex, 

 peristome slightly thickened and somewhat reflected, yellow ; the 

 itiner lip slightly thickened, columella scarcely callous ; axis-'^, 

 diameter ^ of an inch, 



7. Helicina viridis. 



Testa depresso-ovata, angulata, carinata, viridis, nitida, laeviS, 

 tenuis, carina albido-lute^, spirS, convexa ; subtus convexiuscula, 

 peristomate luteo, reflexo, subincrassato, labiis tenuibus; colu- 

 mella basi callosa, alba. 



Helicina viridis. Lamarck^ Hist. vi. 103. 



Saint Domingo, Lamarck, Cuba, G. B. Soicerhif. Mus. 

 Sowerbi/, Goodall. 



Shell depressed ovate, angularly keeled, thin, ])olished, green, 

 the keel whitish yellow, spire convex; beneath rather convex, the 

 peristome scarcely thickened, reflected, yellow, inner lip scarcely 

 visible, very thin, base of the columella callous, white; axis -^j^^ 

 diameter i^ of an inch. 



This beautiful shell appears to be a perfect specimen of the 

 one described by Lamarck, but is much larger. 



♦* Peristome rejlectcd^ columella callous, aperture behind 

 subspinose or sinua/ed, operculum simple. 



8. Helicina aurantia. 



Testa sub-depresso-ovata, subglobosa, Isevis, albido rufescens, 

 unifasciata ; peristomate incrassato, reflexo, aurantlo ; columella 

 callos^; aperturac angulo coluniellari subtuberculato. 



West Indies. 



Shell rather depressed ovate, somewhat globular, purplish 

 ^hite, with a narrow reddish brown band a little behind the 

 centre, so as to revolve near the suture of t!ie spire, and sometimes 

 a few faint reddish lines near the base of the columella, peristome 

 thickened, reflected, oranj;c red, inner lip slightly thickened, the 



k2 



