11 



PSAMMOPHIS .—Bole. 



Genus Psammophis. — Characters. Head much elongated, sub-oval; snout 

 prominent, but rounded; loral plate single, long, and large; superior orbital greatly 

 projecting; posterior orbital plates, two; anterior, one; nostrils lateral, near the 

 snout; eyes very large; body long, slender; tail very long. 



PSAMMOPHIS FLAGELLIFORMIS.— Ca/es%. 



Plate II. 



Characters. Head elongated; superior-orbital plate projecting over the eye; 

 body very long and slender; the anterior part shining black, both above and below; 

 the middle mixed brown and white; the posterior part and tail whitish or tawny- 

 colour. Tail one-fourth of total length. PL 203. Sc. 109. 



a 



Synonymes. Anguis flagelliformis, Coach-whip Snake, Catesby, Carolina, &c., vol. ii. tab. 54. 

 Coach-whip Snake, Bartram, Travels in Carolina and Florida, &c., p. 219. 

 Coluber flagellum, Shaw, Gen. Zool., vol. iii. p. 475. 

 Coach-whip Snake, Vulgo. 



Description. The head is elongated and narrow, the upper jaw projecting; the 

 vertical plate is pentagonal, larger in front, long and narrow, presenting an acute 

 angle backwards; the occipital plates are triangular, large, covering nearly the 

 whole of the posterior part of the head; the superior-orbital are large, somewhat 

 quadrilateral, and projecting greatly over the eye; the posterior orbital are two in 



