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PSAMMOPHIS —Boie. 
Genus Psammopnis.—Cuaracrers, 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.— Catesby. 
Plate I. 
Cuaracters. 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. Se. 109. 
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. ill. 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, covermg 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 
