CONCHOLOGIA CESTRICA. 21 



Station, under logs, and decayed wood, near Philadel- 

 phia. (Tryon.) 



Lingual Dentition of P. dorsalis. [Morse.] 



rig, c, 



Family LIMACID^E. 



Shell small, flat, rudimentary, and concealed within 

 the mantle ; which only covers the upper portion of the 

 animal. 



DIAGRAM OF THE GENERA, AND SPECIES, OF THE FAMILY 



f SPECIES. 

 FAMILY. ( GENUS. flavus, ' 



< \ agrestis, 



LIMACID^E. (UMAX. I cfmpestris, 



[ maximus. 



Genus LIMAX, LINN., 1740. 



Animal, more or less elongated, tapering, acute, man- 

 tle occupying the anterior part of the body, wrinkled ; 

 respiratory orifice in the lower edge of the mantle. 

 Shell very small, and entirely concealed. 



L. flavus, LINN., Syst Nat., Ed. x., i., 1758. 



Limax flavus. [B. & B.] 



Fig, 7, 



