63 
COLUBER TESTACEUS.—Say. 
Plate XIII. 
Cuaracters. “Body above, pale sanguineous or testaceous; beneath, sangui- 
neous, immaculate.” Pl. 198. Caud. Sc. 80. 
Syyonymes. Coluber testaceus, Say, in Long’s Exped. to Rock. Mount., vol. ii. p. 48. 
Coluber testaceus, Harlan, Med. and Phys. Res., p. 113. 
Description. The head is sub-ovate, elongated, the snout prolonged slightly 
and rounded. The form of the head, as well as the plates that cover it, and the 
disposition of the eyes and nostrils, appear in the preserved specimen to be 
precisely similar to those of the Coluber constrictor. The body is long and 
slender, and is covered with large, smooth, hexagonal scales above, and with 
broad plates below. The tail is long and slender. 
Cotour. The whole superior surface of the animal is pale brick-dust colour, 
or “pale sanguineous;” the abdomen and inferior surfaces are brighter red, or 
* sanguineous.” 
Dimensions. Length of head, 1 inch 8 lines: total length, 5 feet 2 inches. 
Hanirs. Though a long snake, it moves with great rapidity in search of its 
prey, or to avoid its enemy. 
GeocrapnicaL Distrisution. ‘The Coluber testaceus has as yet been observed 
only near the Rocky Mountains. 
