14 
EXPLANATION OF THE PLATES. 
Plate. 
XXIV ... 
XXV 
XXVI ... 
XXVII. . 
XXVIII . 
Fig. 
Name. 
Page. 
1 
Crolalus durissus, L. p... 
2 
..do., adamanleus , Beauv.___ 
3 
..do., atrox, B. & G_ 
5 
4 
..do., confluentus, Say._ 
8 
5 
..do., molossus, B. &G... 
10 
G 
..do., or eg onus, Ilolb-- 
145 
7 
Crotalophorus mliarius, Holb- 
11 
8 
_do_ censors, B. & G_ 
12 
9 
Crotalophorus tergeminus, Holb..- 
14 
10 
_do_ edwardsii, B. & G_ 
15 
11 
_do .....kirtlandii, Holb_ 
16 
11 bis. 
__do.do_(young)- 
16 
12 
Ancistrodon contorlrix, B. & G_ 
17 
13 
Toxicophis piscivorus, B. & G—__ 
19 
14 
_do_ pugnax, B. & G_ 
20 
15 
j Elaps fulvius, Cuv_ 
21 
1G 
..do.fetter, B. &G__ 
22 
17 
..do.trislis, B. & G__ 
23 
18 
Dipsas septcntrionalis, Kennicott 1 2 - 
. 19 
Eulaenia saurita, B. &G__ 
24 
20 
..do_ faircyi, B. &G_ 
25 
21 
..do_ proximal, B. & G__ 
25 
22 
..do_ ornata, B. & G. 3 _ 
28 
23 
..do— sirtalis, B. & G_ 
30 
24 
..do_ ordinata, B. & G__ 
32 
25 
..do., .radix, B. & G... 
34 
2G 
..do— marciana, B. &G_ 
3G 
1 
Nerodia transversa, B. &G_ 
148 
2 
Eulaenia dorsalis, B. & G_ 
31 
3 
..do_ ordinoiaes, B. & G__ 
33 
. 27 
Nerodia sipedon, B. & G_ 
38 
28 
. .do., erythrogaster, B. & G_ 
40 
29 
. .do.. taxispilota, B. & G - -. 
43 
30 
..do., holbrookii, B. & G.__ 
43 
31 
..do., niger, B. & G__ 
... 147 
32 
Regina leberis, B. & G___ 
45 
33 
..do..rigida, B. &G_ 
46 
34 
..do. .grahamii, B. & G_ 
47 
35 
..do ..clarJcii, B. &G___ 
48 
36 
.. do.. lcirtlandii, Kenn. 4 __ 
37 
Ninia diademata, B. & G.. 
49 
. 38 
Ileterodon plalyrhinos, Latr_.. 
51 
39 
_do.. cognalus, B. & G- 
54 
40 
_do. ..niger, Troost_ 
55 
41 
_do. .atmodes, B. & G.._ 
57 
42 
_do ..simus, Holb. ... 
59 
42 bis. 
_do.. simus, (second spec.)_ 
59 
43 
_do ..nasicas, B. & G__ 
G1 
Locality. Details given. 
Carlisle, Pennsylvania_All. 
Tensacola, Florida_..._All. 
Indianola, Texas..u. 1. s. f. 
Red River_-___All. 
Sonora...n. 1. s. f. sc. 
Oregon?__u. sc. 
Charleston, South Carolina...All. 
Indianola, Texas.-.u. sc. 
Racine, Wisconsin...All. 
All. 
All. 
s. 
All. 
All. 
All. 
All. 
All. 
All. 
All. 
All. 
All. 
All. 
All. 
All. 
All. 
All. 
u. 1. s. f. sc. 
All. 
All. 
All.a 
All. 
u. 1. s. f. sc. 
All. 
All. 
All. 
All. 
All. 
All. 
u. 1. s. f. sc. 
All. 
s. u. 
All. 
All. 
All, nasal pi, 
All, n. p. 
All. 
u. 
All, n. p. 
Rio Grande, Texas_ 
Ohio.. 
Ohio_ 
Near San Antonio, Texas.. 
Red River, Louisiana- 
Indianola_ 
Charleston, South Carolina. 
San Felipe, Texas.- 
Kemper county, Mississippi, 
Brownsville, Texas.. 
Carlisle, Pennsylvania .... 
Red River, Louisiana_ 
Indianola, Texas.. 
San Antonio to El Paso ... 
Westport, New York. 
Riceboro’, Georgia. 
Racine, Wisconsin_ 
Red river_ 
Red river_ 
Texas.. 
California .. 
Carlisle, Pennsylvania ..... 
Red river, Louisiana_ 
Liberty county, Georgia_ 
Red. river, Louisiana_ 
Massachusetts_ 
Carlisle, Pennsylvania_ 
Pennsylvania .. 
Texas ___ 
Indianola_ 
Illinois___ 
Orizaba, Mexico.... 
Carlisle, Pennsylvania_ 
Indianola_ _ 
Carlisle, Pennsylvania__ 
Charleston, South Carolina 
.do..do_ 
......do..do_ 
Eagle Pass, Texas.. 
1 U. S. Boundary Report, II, 1859 ; Reptiles, p. 1G. 
2 U. S. Boundary Report, II, 1859 ; Reptiles, 16 : Eulaeniaparielalis, Catal. Serpents, 28. 
3 a, head from above ; b, do. from side ; c, do. from below ; d, anal region ; e, side scales. 
4 Kennicott, Pr. A. N. Sc. VIII, April, 185G, 95. 
