15 
Jour. Acad, vol ii, p. 150, anno, January, 1821. 
Helix moltilineata. — Shell thin, convex, imperforated ; of a 
brown color, with numerous dark red, revolving lines, which are 
minutely and irregularly undulated ; whorls six, with elevated, 
subequidistant lines, forming grooves between them 5 aperture 
lunated, not angulated at the base of the column, but obtusely 
curved; labrum contracting the mouth slightly, reflected, 
white, more or less distinctly stained by the termination of the 
spiral red lines, and adpressed to the body whorl near the base ; 
umbilicus covered with a white callus. 
Inhabits Illinois and Missouri. Length of the columella about 
three-flfths, greatest width rather more than one inch. 
Animal granulated, granulse large, whitish, interstices blackish : 
foot, beneath, black. 
An exceedingly numerous species in the moist forests on the 
margin of Mississippi near the Ohio, and the Missouri as far as 
Council Bluff. The red revolving lines are numerous, varying 
from four or five to twenty-five or thirty and perhaps still more ; 
they are sometime confluent into bands ; when viewed within the 
mouth they appear sanguineous. 
H. appressa. — Shell depressed, brownish horn color ; whorls 
five, depressed, forming an angle on the external one, more acute 
near the superior angle of the labrum, with numerous transverse, 
elevated, equidistant lines, with interstitial grooves ; umbilicus 
covered over with calcareous matter, but concave within ; aperture 
moderate ; labrum dilated, reflected, white, margined with brownish ; 
near the base, appressed to the body whorl, and covering the um- 
bilicus ; a slight projecting, dentiform angle on the inner middle ; 
labrum with a strong, prominent, oblique, compressed, white tooth, 
which gradually slopes and becomes obsolete towards the um- 
bilicus. 
Var. a. — Labrum with two projecting angles. Breadth three- 
fifths of an inch. 
Animal — foot pale ; neck above and each side blackish. In- 
habits the banks of the Missouri and Ohio. 
This species is very common on the banks of the Ohio below 
Galiopolis ; I also found it near Council Bluff. It very much re- 
sembles H. trident ata, but the umbilicus is covered, over ; the 
outer lip at base is flattened upon the shell ; and there is but a 
