

LIST OF PLATES 



Plate I. 



Plate II. 



Plate III. 

 Plate IV. 



Plate V. 



Plate VI. 



Plate VII. 



Plate VIII. 



-Croialus alrox, B. & G. 

 -Crotalus molossus, B. & G. 

 Crotalus cerastes, Hallow. 

 •Crotalus tiijris, Kennicott. 



Fig. 1. — Crotalophonis cdtvardsii, B. & G. 

 Fig. 2. — Salvadora grafaxmiae, B. & G. 

 Tbxicophis pugnax, B. & G. 



-Fig. 1. — Elaps tenpr, B. & G. 



Fig. 2.— Begina grahamii, B. & G. (young.) 

 Fig. 1. — Dipsas septentrional is, Kerm. 



Fig. 2. 



episcopum 



Plate IX. 



Plate X. 



Plate XI. 



I 'late XII. 



-Eutaenia ornafa,B. & G. 

 ■Begina darkii, B. & €L 



Fig. 1. — Htf< rodonrtnsicus, B. & G. 

 Fig. 2. — Begina clarkii, B. <fe G. (young.) 

 ScoiopMs emoryi, B. & G. 



Plate XIII. : Arizona elegans, Kennicott 



Plate XIV. 



Plate XV. 



Plate XVI. 



Ophibolus splendidus, B. & G, 

 Georgia obsoleta, B. & G. • 

 Masticoplds testaceus, B. & G 



Plate XVII. Masticophis ornatus, B. & G 



Plate XVIII,— Masticophis schotti, B. <fc G, 

 Plate XIX. 



Plate XX 



Plate XXI 



-Fig. 1. — Taeniophis imper talis, B. & G. 

 Fig. 2. — DiadopMs regal is, B. & G. 

 Fig. 3. — Sonora serniannulal a , B. <fe G. 

 ■Bhinocheilus lecontii, B. & G. 

 ■Fig. 1. — Lftmprosohia occipif<de, Hallow, 

 Fig. 2. — Tolnca lineata, Kennicott. 



Fig. ° 



o. 



DiadopMs docilis, B. & G, 



Plate XXII. Skulls of serpents 



Fig. 1. — Srdvadora gvaliamiae^ B. & G. 

 Fig. 2. — Dipsas septent riomdis, K<mi. 



Fig. 3. — Eida i sauril<K B. <fc <;. 

 Fig. 4. — Eutaenia man 'in", B. <fc G. 



Fig. 5. — Baseaytion c nstrictor, I J. & G. 

 Fir,. 6. — Georgia obsoleta, B. & G. 



Fig. 7. — Jfasficophi* tcstaeem, B. & G. 

 Plate XXIII, Phjs. 1 — 8. PhyVodortylw tubere<losus,W\^j:. No. 3208. — Fig. 1, animal; fig. 2, 



head from si : fig. 3, 1 ad fr<>rn above; fig. 4, head from below: fig. 5, inguinal region; 

 fig. {>, under surfac of left ha d; fig. 7, toe from above, showing tl short claw; fig. 8, 



skin of hack. 



All m mil I rxccpf %. 1 



Female. 



5 



r 



