46. Light stripes running the length of the body; Ala., Georgia and Florida 



Eumeces egregius (Baird) Eastern Red-tailed Skink 

 (PlesUodon egregius (Baird) ) 

 Light stripes on anterior part of body only; Florida 



Eumeces onocrepis (Cope) Florida Red-tailed Skink 



47. With a row of light spots along each side of the upper jaw; rows of scales 



on sides oblique, not parallel to the dorsal rows of scales; dorsal scales 

 often light-spotted or dark-edged; Kansas to Utah, and southwards 

 Eumeces ohsoletus (B. t^ G.) Spotted Skink 

 (Includes E. guttulatus (Hallowell) ) 

 Not so; upper jaw mostly light colored or dark blotched; rows of scales 

 on sides parallel to the dorsal rows of scales 48. 



48. Dorsolateral light lines on the third row of scales on each side (counting 



from the mid-dorsal line) and extending the length of the body 49. 

 Dorsolateral light lines absent or differently situated 50. 



49. With two light lines only on the body; N. M. and Texas 



Euyneces gaxgeae (Taylor) Two-lined Skink 

 With more than two light lines on the body; with a mid-dorsal light line 

 which forks on the head; adults with several light lines on each side; 

 Neb. to Texas and Ariz. 



Eumeces multnnrgatus (Hallowell) Many-lined Skink 



50. No postnasal (small plate not larger than the nasal behind the nasal and 



before the two larger plates (loreals) in a horizontal plane before the 

 eye) ; with two or three median plates (one mental and one or two 

 postmentals) from the tip of the chin backwards, before the chin 

 shields begin; scale count 24-29 51. 



With one postnasal; with three median plates (one mental and two 

 postmentals) from the tip of the chin backwards; scale count various 



56. 



5L With at least traces of two diverging light lines on top of the head; 



dorsolateral light lines incomplete on posterior half of body or not 



dark bordered 52. 



No light lines on top of the head; dorsolateral Hght lines distinctly dark 



bordered and extending the full length of the body 54. 



52. Parietal plates on head adjacent behind the interparietal; Ariz. 



Eumeces callicephalus Bocourt Mountain Skink 

 Parietal plates completely separated by the interparietal 53. 



53. Dorsolateral light lines extending the full length of the body; light lines 



on top of the head usually not joining posteriorly; Texas 

 Eumeces tetragrammus (Baird) Texas Skink 

 Dorsolateral light lines fading out on posterior half of body; light lines 



on top of the head usually joining posteriorly; Texas 

 Eumeces hrevilineatus Cope Short-lined Skink 



54. With two median plates (one mental and one postmental) from the tip 



of the chin backwards, before the chin shields begin; dorsolateral light 

 lines not dark-edged above; N. Y. to Ga. and Texas 

 Eumeces anthracinus (Baird) Black Skink 



371 



