104 
OHIO STATE ACADEMY OF SCIENCE. 
Throat white.— Bascanion constrictor—p. 
Throat color of belly. 61. 
A ring around neck.— Diadophis regalis arnyi—p. 
No ring around the neck.— Eutainia sirtalis graminea—p 
Tip of snout upturned.— 
Tip of snout not upturned. .63. 
Top of head bright copper—colored.— Coluber vulpinus—p. 
Top of head not coppery. 64. 
Belly reddish or salmon-colored. 65. 
Belly not reddish. 68. 
Uniform below, without markings. 66. 
With markings below. 67. 
Three white dots on back of head.—,Storeria occipitomaculata—p 
Scales smooth. A yellow ring around neck.— 
Diadophts punctatus—p. 
Scales rough. No collar.— Natrix kirtlandi—p. 
Stripes above, no spots. 69. 
Stripes and spots or spots alone. 72. 
Yellowish below. — Natrix leberis—p. 
Greenish below, 70. 
A dorsal stripe. 71. 
No dorsal stripe.— Lutainia saurita—p, 
Greyish, dots on either side of dorsal stripe.—.Storeria dekayi—p. 
No series of spots along dorsal stripe.— 
Evutainia sirtalis obscura—p 
Scales smooth. 73. 
Scales rough. 76. 
128. 
126. 
eye 
Fleterodon platyrhinus—p. 
126, 
128. 
SLOreria C oaaas 
No dots on top of head.— Natrix fasciata erythrogaster —p. 
EAT 
126. 
132. 
102), 
Te 
132: 
pegyile 
Markings in form of minute black dots, scattered promiscuously.— 
Virginia valeriae—p. 
Spots in form of blotches. 74. 
Scales white-edged.— Coluber obsoletus obsoletus—p. 
Scales not white-edged. 75. 
No yellow band running back from eye.— 
Osceola daliata doliata—p. 
A yellow band running back from eye.— 
Osceola doliata triangula—p. 
Pituophis melanoleucus—p. 
Ground color whitish.— 
Ground color dark. 77. 
Belly blotched. 78. 
No blotches on belly. 79. 
A lateral series of blotches. — Natrix fasciata stpedon—p. 
No lateral series of blotches.— Natrix fasciata fasciata—p. 
Stripes and squarish spots.— Eutainia sirtalis sirtalis—p. 
Spots, no stripes.— Eutainia sirtalis ordinata—p. 
