196 REPTILIA : OPHIDIA. — XXVIII. 
olive, with rhomboid black blotches; body slender; eye very large. 
Scales 17 (rarely 19). V.P.170t0 190. L. 50 to 60. E.U.S., 
common E. and S. (Lat., one that hugs.) 
283. PITUOPHIS Holbrook. (mirvs, pine-tree ; ddus, snake.) 
565. P. melanoleucus (Daudin). Pine Snake. Buu SNakE. 
Whitish, with chestnut brown blotches which are margined with 
black, besides 3 series of lateral blotches. Scales 29. V.P. 220 to 
230. L. 60. Pine woods; N. J. to Mich. and 8. (eéAas, black ; 
Aevkos, white.) 
566. P. sayi (Schlegel). WrsTERN PINE SNAKE. Chestnut 
brown with many orange cross-blotches and spots; sides mottled 
with black and orange. Scales 25 to 29. V. P. 220 to 245. L. 
40 to 70. Ill. to Kan. and N. W. (To Thomas Say.) 
284. DIADOPHIS Baird and Girard. (é:d, through; 
odus, snake.) 
567. D. punctatus (L.). RING-NECKED SNAKE. Eye rather 
large. Blue-black above, bright pale orange below (yellowish in 
spirits) ; each plate usually with a black spot on each side and 
sometimes a median one; a very conspicuous yellowish ring about 
neck, 2 scales wide. Scales 15. V. P. 140 to 160. L. 15. KE, 
U.S. W.to Kan. Represented W. by var. amabilis Baird & Girard, 
slender, with V. P. 180 to 185; below darker and more spotted ; 
scales on sides considerably larger than those on back. W. U.S., 
E. to Ohio. 
568. D.arnyi Kennicott. Lead black; belly spotted and mottled 
with black; occipital ring narrow, 14 scales wide. Scales 17. Il. 
to Ariz. 
285. OPHIBOLUS Baird & Girard. (ddus, snake; Rodis, dart.) 
a. Dorsal scales in 21 rows. 
6. Color chiefly black. 
569. O. getulus (L.). Carn Snake. THUNDER SNAKE. 
Black with narrow yellowish lines forking on the flanks, each fork 
embracing a large black spot; belly checkered. Scales 21. V. P. 
210 to 240. L. 50. Va. to La., E. of the mountains; variable. 
Xepresented westward by var. sayi (Holbrook). King SNAKE. 
Lustrous black, many scales with a yellow spot in the centre, these 
sometimes forming cross-lines on back; belly blotched. Alleghany 
to Rocky Mts., abundant, N. to Ills.; a handsome snake, said to 
be an enemy of the rattlesnake. 
bb. Color red or grayish, with dark markings. 
570. O. doliatus (L.). Rep Snake. Corn Snake. Red, 
with twenty to twenty-five pairs of black rings, each set enclosing 
