AMPHIBIA AND REPTILIA OF COLORADO 8 1 



Eumeces multivirgatus (Hallowell) 

 Many-Lined Skink 



Plestiodon multivirgatum Hallowell, Proc. Acad. Nat. Sci. Phila., p. 251, 1857. 



General color grayish green to olive green; ventral parts greenish; 

 mid-dorsal region dark green bordered on each side by four or usually 

 five stripes of brown which alternate with stripes of the ground color. 



Range, Nebraska, Colorado and Kansas south into Texas. 



Colorado specimen. — State Teachers' College Museum: near Greeley, A. E. 

 Beardsley. 



Suborder SERPENTES 



The Snakes 



Key to the Families and Genera of the Colorado Snakes 



A. No pits on the sides of the head COLUBRIDAE 



B. Maxillary teeth without grooves (all of the Colorado Colubridae 

 excepting one small, reddish snake with a black head, belong here). 

 C. Anal plate entire. 



D. Scales in 17 to 25 rows. 



E. Scales keeled; 17 to 21 rows. 



Thamnophis Fitzinger (page 82). 

 EE. Scales smooth; 19 to 25 rows. 



Ophibolus Baird and Girard (page 90). 

 DD. Scales in 29 to 35 rows. 



Pityophis Holbrook (page 92). 

 CC. Anal plate divided. 



F. Scales distinctly keeled. 



G. Rostral plate projecting and recurved, producing a 

 "snout." . . . Heterodon Latreille (page 95). 

 GG. Rostral plate not projecting as above. 

 H. Loreal plate present. 



Tropidonolus Kuhl (page 96) . 

 HH. Loreal plate absent. 



Storeria Baird and Girard (page 98). 

 FF. Scales smooth or very faintly keeled. 



I. Nasal plates, one on each side; size small. 

 J. Dorsal parts uniform bright green. 



Liopeltis Cope (page 99). 



