14 



EXPLANATION OF THE PLATES. 



Plate. Fig. Name. Page. 



XXIV 1 Crotalus durissus, L. p -. 1 



2 ..do., adamanteus, Beauv. 3 



3 ..do., atrox, B. & G 5 



4 ..do_. confluentus, Say. 8 



5 ..do., molossus, B. & G 10 



6 ..do., oregonus, Holb 145 



7 Crotalophorus miliarius, Holb. 11 



8 do censors, B. & G 12 



XXV.. 9 Crotalophorus tergeminus, Holb ... 14 



10 do edu-ardsii, B. & G 15 



11 do kirtlandii, Holb 16 



11 bis. do do... .(young) 16 



12 Ancistrodon contortrix, B. & G 17 



13 Toxicophis pisdvorus, B. & G 19 



14 ...do... pugnax, B. &G 20 



15 Elaps fulvius, Cuv 21 



16 ..do.tener, B. & G 22 



17 ..do.tristis, B. & G 23 



18 Dipsas septenti ionalis, Kcnnicott 1 



XXVI 19 Eutaenia saurita, B. & G._ 24 



20 ..do...faireyi, B. & G 25 



21 ..do... proximal, B. & G. 25 



22 ..do.-.ornata, B. & G. z 28 



23 ..do-..sir(alis, B. & G 30 



24 ,.do...ordinata, B. & G 32 



25 ..do. ..radix, B. &G 34 



26 -.do-..marciana, B. &G 36 



1 Nerodia transversa, B. & G 148 



2 Eutaenia dorsalis, B.&G 31 



3 . .do. . -ordinoides, B. & G 33 



XXVII.-. 27 Nerodia sipedon, B. & G 38 



28 ..do..erythrof/as(er,T$.&G 40 



29 ..do., taxispilota, B. &G 43 



30 ..do.. Jwlbrookii, B. &G 43 



31 ..do., niger, B. & G 147 



32 Rcgina leberis, B. & G 45 



83 ..do..ri&amp;lt;jida, B . &G 46 



34 ..do-.ffrahamii, B. &G 47 



35 ..do..darkii, B. &G 48 



36 ..do.. kirtlandii, Kenn. 4 



37 Nmia diademata, B. & G 49 



XXVIII.. 38 Neterodon platyrhinos, Latr 51 



39 do..cogna(us, B. & G- 54 



40 do ...niger, Troost 55 



41 do.-almcdes, B. & G .. 57 



42 do..simus, Holb 59 



42 bis do..simus, (second spec.) 59 



43 do-.nasicus, B. & G 61 



Locality. Details given- 



Carlisle, Pennsylvania All. 



Pensacola, Florida .All. 



Indianola, Texas u. 1. s. f. 



Eed River All. 



Sonora _ u. 1. s. f. sc, 



Oregon? u. sc. 



Charleston, South Carolina All. 



Indianola, Texas u. sc. 



Racine, Wisconsin. All. 



Rio Grande, Texas All. 



Ohio All. 



Ohio .- s. 



Near San Antonio, Texas All. 



Red River, Louisiana All. 



Indianola .- All. 



Charleston, South Carolina All. 



San Felipe, Texas All. 



Kemper county, Mississippi All. 



-Brownsville, Texas All. 



Carlisle, Pennsylvania All. 



Red River, Louisiana _ All. 



Indianola, Texas . . All. 



San Antonio to El Paso All. 



Westport, New York All. 



Riceboro , Georgia. All. 



Racine, Wisconsin All. 



Red ri rer , u. 1. s. f. sc. 



Red river All. 



Texas All. 



California All. 3 



Carlisle, Pennsylvania ... All. 



Red river, Louisiana. u. 1. s. f. sc. 



Liberty county, Georgia ..All. 



Red river, Louisiana All. 



Massachusetts ..All. 



Carlisle, Penns ylvania. _ All. 



Pennsylvania All. 



Texas . .All. 



Indianola u. 1. s. f. sc. 



Illinois All. 



Orizaba, Mexico s. u. 



Carlisle, Pennsylvania All. 



Indianola All. 



Carlisle, Pennsylvania All, nasal pi. 



Charleston, South Carolina All, n. p. 



do do All. 



do do u. 



Eagle Pass, Texas All, n. p. 



1 U. S. Boundary Report, II, 1859 ; Reptiles, p. 16. 



2 U. S. Boundary Report, II, 1859; Reptiles, 16 : Eutaenia. parietalu, Catal. Serpents, 28. 



n a, head from above ; b, do. from side ; c, do. from below : d, anal region ; e, side scale*. 

 4 KKNNICOTT, Pr. A. N. Sc. VIII, April, 1856, 95. 



