Xxil ; PLATES. 
6. Head (upper view) } 
Go, Head (aide tiew) | 9° "ES 
Green Tree Syaxe—Dendrophis punctulata. 
7. Head (upper view) 
7a. Head (side view) of the 
Brown Tree Syake—Dipsas fusca. 
8. Head (upper view) ) 
8a. Head (side view) § of the 
Fruso-water Svaxe—Tropidonotus picturatus.. 
9. Head (upper view) of 
9a. Head and portion of body 
Preiss’ Burp Snake—Typhlops preissi. 
10. Head (side view) 
of 
13. Head (upper view) 
18a. Tail 
Scumipt’s Buinp Snaxe—Typhlops bicolor. 
11. Head (side view) of 
Ripreni’s Burp Snaxe—Zyphlops riippelli. 
12a. Head (side view) 
12d. Tail 
Gray’s Brinn Syaxe—Zyphlops nigrescens. 
12. Head (upper view) 
of 
PLATE VI. 
VENOMOUS. 
1. Skull of 
American RatrLEsNakKE—Crotalus durissus. 
2. Skull of 
AvstraLian Brack Syaxr—Pseudechis porphyriacus. 
3. Head of 
West Avustratman Crownep Swaxe—Hoplocephalus coronatus. 
4. Head (upper view) 
4a. Head (side view) ‘ of the 
Buack-BackED SnakeE—Hoplocephalus nigrescens. 
5. Head (upper view) 
5a. Head (side view) } ge te 
Temporat Desert Snake —Hoplocephalus temporalis. 
6a. Head (lower view) 
6b. Head (side view) 
BroaD-HEADED SyaKe— Hoplocephalus variegatus. 
6. Head (upper view) 
of the 
