COLUBRID^E. CX. 191 



kk. V. P. about 150 ; striped REGINA, 277. 



fcM. Scales 23 to 29. 



I. Snout without recurved keel at tip. 



m. V. P. 130 to 160 ; brownish, usually with cross blotches. 



NATRIX, 278. 

 mm. V. P. 200 to 240; brown or black, mostly blotched. 



CALLOPELTIS, 279. 



II. Snout recurved and keeled; V. P. 125 to 150. . . HETERODON, 288. 



269. CARPHOPHIOPS Gervais. (icdpcpos, dry twig ; o</us, snake ; 



&//, appearance.) 

 a. Frontals, two pairs. 



531. C. amoenus (Say). GROUND SNAKE. Glossy chestnut 

 brown ; belly salmon-red ; head very small ; vertical plate broad ; 

 scales 13 ; V. P. 112 to 131. L. 12. Mass, to IU. and S. (Lat., 

 pleasing.) 



532. C. vermis (Kennicott). WORM SNAKE. Purplish-black, 

 belly flesh color, the color extending on sides ; scales 13 ; larger 

 than the others. Mo. to Kan. (Lat. worm.) 



aa. Frontals, a single pair. 



533. C. helenae (Kennicott). With one pair of frontals is a 

 mere variation of C. amoenus. 



270. ABASTOR Gray. (A coined name.) 



534. A. erythrogrammus (Daudin.) " HOOP SNAKE." Blue- 

 back ; sides with three red lines ; belly flesh color, with black 

 blotches ; eyes very large ; nostril in the middle of nasal plate ; 

 scales 19; V. P. 167-185. L. 25. N. C. to S. 111. and S. ; a 

 harmless snake concerning which many absurd stories have been 

 told, (epvdpos, red ; y pappy, line.) 



271. VIRGINIA Baird & Girard. 



535. V. valerise Baird & Girard. Grayish, with minute black 

 dots, often in two rows; yellowish beneath; scales 15; V. P. 120 

 to 130. L. 12. Md. to 111. and S. (To Miss Valeria Blaney.) 



536. V. elegans Kennicott. Scales very narrow and elongate ; 

 olivaceous above, yellowish beneath ; scales 1 7. S. Ind. to Ark. 



272. PARANOIA Gray. (A coined name.) 



537. F. abacura (Holbrook). HORN SNAKE. Blue-black with 

 red, squarish spots on side ; belly red, blotched with black ; eyes 

 small; scales 19 ; V. P. 170 to 203. L. 36. S. C. to S. 111. (Nel- 

 son) and S. (73a, checker; oupa, tail.) 



273. HALDEA Baird & Girard. (To Prof. Samuel 

 S. Haldeman?) 



538. H. striatula (L.). BROWN SNAKE. Head elongated, 

 on a small neck. Eye large. Reddish gray, salmon red beneath; 



