LANCASTER COUNTY. 471 



sum in modern books. Fiber zibethicus; muskrat. Arvicola 

 xanlhognatus ; meadow mouse : A. viparius; tail short, inhab- 

 its marshes. Mus agrariusi Gerbilliis Canadensis; kanga- 

 roo, jumping mouse. Arctomys monax ; ground-hog. Sciu- 

 ruscinereus; cat squirrel : S. Hudsonius; red squirrel: S. ni- 

 ger? black squirrel. Tarn ias striata ; ground squirrel. Pter- 

 omys volucella ; flying squirrel. Lepus sylvaticus ; rabbit. 



REPTILIA*— Reptiles. 



Testudinata. 



Cistuda Carolina; the color of the common land tortoise is 

 yellow, mottled with dark brown or black. Emys geographica; 

 shsU 8 inches long, with a ridge along the back ; dark brown, 

 with lighter, indistinct, irregular lines ; used as food, and usu- 

 ally called terrapin. Emys Muhlenbergiil 4 inches long, a 

 large orange spot upon each side of the neck; doubtful as a 

 native of this county. Emyspicta; 5 inches long, margin of 

 the shell marked with red stripes, common in ponds and small 

 streams, fond of reposing in the sun. Emys guttala; black, 

 with small yellow spots, less than the preceding, with which it 

 is frequently found. Emys insculpta ; yellow and black, each 

 plate comprising the carapax or upper shell is roughened by 

 concentric and radiating furrows, a b'ack spot upon each plate 

 of the sternum. E. rubriventrisl sternum marked with red ; it 

 may be found in the lower parts of the Susquehanna. Sterno- 

 thorus odoratus; length about 4 inches, dark brown, sternum 

 very narrow, carapax oval, convex and smooth, chin with 

 several small warts. Kinostcrnon Pennsylvanicum ] nearly 

 resembles the preceding, but the sternum is wider, and separ- 

 ated into three parts, not hitherto observed within the county. 

 Emysaura serpentina; (snapper) head large, tail long and 

 strongly serrated above; highly prized for "terrapin soup." 



Ophidia — Serpents. 



Coluber constrictor ; blacksnake : C. sipedon ; watersnake : 

 C. sirtalis; gartersnake: C. saurita; gartersnake: C. septem- 



•Holbrook's North American Herpetology. 5. vols, quarto. 



