HELIX. 25 
pressed, umbilicated, pellucid, brownish horn- 
colour, covered with minute bristles; lip thin, 
sub-reflected. B.small. T. 41. 
H. rotunpaTa.  Filattish orbicular, rather 
convex, widely umbilicated, deeply striated, grey 
or reddish; spire peculiarly obtuse; lip simple. 
This shell is generally rayed with a darker colour. 
B. very small. T. 44. 
H. PULCHELLA. Minute, umbilicated, white 
or ash-colour, depressed, equally convex on both 
sides ; aperture nearly circular, with the margin 
flat and reflected. B. T. 49.) 0° 
H. acuteata. Minute, conic, brown horn- 
colour, with the suture deep ; the epidermis rising 
into thin spinous foliations ; aperture semi-ellip- 
23. T. 33. | 
H. GLABELLA. Sub-depressed, perforated, 
smooth, horn-colour; aperture semi-lunate, round; 
lip sub-marginated ; last whorl sub-carinated, con- 
vex, and marked with an obsolete white band upon 
me keel. Small. B. T. 28. 
H. sericea. Sub-depressed, horny, and 
brownish, thin, fragile, pellucid, perforated, hairy, 
and last whorl carinated ; aperture extremely 
small, semi-lunar, simple. B. small. T. 29. 
H. pyemea. Depressed, umbilicated, most 
finely striated, above rather convex, immaculate, 
brownish horn-colour, with four rounded whorls ; 
Cc 
