16 
EXPLANATION OF THE PLATES, 
Plate. Fig. 
XXXIII .. 91 
92 
93 
94 
95 
96 
97 
98 
99 
100 
XXXIV .. 1 
2 
3 
4 
5 
6 
7 
XXXV ... 1 
2 
3 
4 
5 
C 
7 
8 
XXXVI... 1 
2 
3 
4 
5 
6 
7 
8 
Name. 
Hidden strialula, B. & G_ 
Farancia abacura, P>. & G_ 
Abastor erythrogrammus, Gray . . 
Virginia Valeria, B. & G_ 
Celuta amoena, B. &G_... 
Tantilla coronata, B. &G.- 
Osceola elapsoidea, B. &G_ 
Storeria dekayi, B. & G_ 
..do., occipito-maculata, B. & G. 
Rena didcis, B. &G_ 
Georgia couperi, B. &G_ 
Nerodia rhombifer, B. & G_ 
. .do.. ivoodhousii, B. & G_ 
..do ..fasciata, B. & G_ 
Eutaenia radix, B. & G_ 
? Microps lineatus, Hall 3 _ 
Crotalus tigris, Kennieott 4 .. 
Crotalus _ 
Crotalus _ 
Crotalus cerastes, Hallow . 5 .. 
..do. 
Lamprosoma occipitale, Hall 6 
Lamprosoma occipitale, Hall 7 . 
Toluca lineata, Kenn 8 .. 
Crotalus luci/er, B. & G_ 
Eutaenia leptocephala, B. & G 
..do_ pickeringii, B. & G. 
Pilyophis catenifer, B. & G_ 
..do_ wilkesii, B. & G_ 
Bascanion vetustus, B. & G._. 
Contia mills, B. &G_ 
Lodia tenuis, B. & G_ 
Page. Locality. Details given. 
122 Richmond, Virginia, 2 diam.it. l.s. f. sc. 
123 Red river, Louisiana__u. 1. s. f. sc. 
125 Southern States_u. 1. s. f. sc. 
127 Maryland, 2 diam_u. 1. s. f. sc. 
129 Carlisle, 2 diam__.u. 1. s. f. sc. 
131 Kemper county, Mississippi, 2 diam_u. s. 
133 Charleston, South Carolina, 2 diam_u. s. 
135 Framingham, Massachusetts, 2 diam_u. s. 
137 Madrid, New York, 2 diam_u. s. 
142 San Pedro, Can. Sp., Tex., 3 diam_u. 1. s. 
92 Georgia__a. b. c. d. e. * 1 * 
147 Arkansas__ As in fig. 1. 
42 Texas __ As in fig. 1. 
39 South ?. .As in fig. 1 3 
34 Wisconsin ?...As in fig. 1. 
.Fort Chadbourne, Texas...As in fig. 1. 
___As in fig. 1. 
_Colorado Bottom.. As in fig. 1. 
..Sierra Verde, California_As in fig. 1. 
__As in fig. 1. 
_Sierra Verde, California_As in fig. 1. 
.Colorado Desert.. As in fig. 1. 
_California_As in fig. 1. 
_Valley of Mexico.As in fig. 1. 
6 Oregon.As in fig. 1. 
29 Oregon .. As in fig. 1. 
27 Oregon.. As in fig. 1. 
69 California_As in fig. 1. 
71 Oregon. As in fig. 1. 
97 Oregon.As in fig. 1. 
110 Oregon, 2 diam-- As in fig. 1. 
110 Oregon, 2 diam. As in fig. 1. 
1 All, except head from front. 
3 Add f. dorsal scales ; g, side view of ditto, showing a peculiar serration of the carination. 
3 Hallowell, Pr. A. N. Sc. VIII, 1856, 240. 
4 Mex. Bound. Rep. II, 1839 ; Reptiles, 14. 
5 Hallowell, Pr. A. N. Sc. VII, June, 1854, 95. 
6 U. S. Mex. Bound. II, 1859 ; Reptiles, 21. 
7 Hallowell, Pr. A. N. Sc. ut supra. 
3 Kennicott, ut supra, 23. 
