Gray on Helicina 67 



6. Helicina costata. 



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

 coiiica, subtus subconvexa ; peristomate incrassato subreflexo, 

 luteo, labiis subincrassatis. 



Shell, depressed ovate, yellow, spirally rib-striated, ribs convey, 

 those of the upper part broadest, becoming smaller and closer 

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

 peristome slightly thickened and somewhat reflected, yellow ; the 

 inner lip slightly thickened, columella scarcely callous ; axis -2?^, 

 diameter ^^ of an inch. 



7. Helicina viridis. 



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

 tenuis, carina albido-lutea, spira convexa ; subtus convexiuscula, 

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

 mella basi callos^, alba. 



Helicina viridis. Lamarck^ Hist. vi. 103. 



Saint Domingo, Lamarck. "Cuba, G. B. Soicerhjj: Mus. 

 Soicerby, Goodall. 



Shell depressed ovate, angularly keeled, thin, polished, 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 -^, 

 diameter -li of an inch. 



This beautiful shell appears to be a perfect specimen of the 

 one described by Lamarck, but is much larger. 



** Peristome rejlected^ columella callous, aperture behind 

 subspinose or sinuated, operculum simple. 



8. Helicina aurantia. 



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

 unifasciata ; peristomate inciassato, reflexo, aurantio ; columella 

 callosa ; aperturae angulo columellari subtuberculato. 



West Indies. 



Shell rather depressed ovate, somewhat globular, purplish 

 white, with a narrow reddish brown band a little behind the 

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

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

 thickened, reflected, orange red, inner lip slightly thick-ened, the 



e2 



