BATR.ACHIANS AND REPTILES OF OHIO. 123 



Class: REPTILIA. 



But one fossil reptile is known from an Ohio formation, this 

 being a portion of the anterior end of an animal together with a 

 portion of the vertebral column and the right posterior leg, show- 

 ing crux and tarsalia. The specimen was taken at L-inton, Ohio. 

 It is considered by Cope as the only reptile positively identified 

 from the Coal Measures and therefore the oldest known reptile. 

 In speaking above 8 regarding the fossil Batrachia, an attempt was 

 made to correlate the horizon at Linton, from which the several 

 specimens were taken, with the Permian. In case the identifica- 

 tion is correct, the statement of Cope would not be true, since the 

 Theromorpha embraces many families found in the Permian of 

 both the old and new worlds. 



Order: THEROMORPHA Cope. 



Family : PARIOTICHIDAE Cope. 

 Isodectes punctulatus Cope, Proc. Amer. Phil. Soc., 36:88. 



Order: SQUAMATA Latr. 

 Family : IGUANIDAE. 



Sceloporous undulatus undulatus L/atr. Above brownish olive, with 

 undulating brown cross bars edged with livid green. Legs similarly trans- 

 versely banded. Throat and sides of chest bright blue, scales keeled. Head 

 somewhat flattened. Length 7 inches. 



The Pine-tree lizard is common in the non-glaciated region 

 of Ohio, its range in the State being limited, in the main, by the 

 glacial boundary. It is a beautiful object, a statement, could 

 antipathy be overcome, no one would care to gainsay. It is 

 extremely quick in its movements and therefore difficult to cap- 

 ture. The vertebrae of the tail are so constructed that that 

 appendage may be readily parted with, with whatever disadvant- 

 age, gaining the life of its owner. 



This little animal is absolutely harmless and makes an excel- 

 lent pet. 



Specimens in the JL S. Nat. Mus., recorded by Cope from Columbus. 

 In Cin. Soc. Nat. His., collected by Dr. Lindahl at Cincinnati ; in O. S. U. 

 Mus., by J. S. Hine at Vinton, and by the author from Chillicothe and Fair- 

 field Co. Also recorded from Sugar Grove. 



8. Supra, p. 105. 



