Zoological Miscellany . 
71 
V. VrPERA. Superciliary shiel.^c distinct, rest of the head covered with 
small smooth plates : nose more or less i.. -urved. 
* Nose rather elevated and rounded in front. 
1. Vipera aspis. F. Schlegel, 591, t. 21 , fig. 17, 18. C. aspis, 
Linn. Vipera Redi and F. ocellata, Daud. C. Berus.^ Daud. 
Inhabits Europe. Brit. Mus. 
Nose, end produced into a conical horn, covered with small flat shields. 
2. Vipera Ammodytes, Schlegel, 602, t. 21, fig. 19, 20. Coluber Ammo- 
dytes, Linn. Amoen. Acad. i. t. 12, fig. 2 ; Sturm, Fauna, Deut. t. 
Inhabits Europe ; shores of Mediterranean. Brit. Mus. 
VI. Pelias. Vertebral, occipital and superciliary plates distinct; front 
of head with small shields : nose blunt. 
1. Pelias Berus. Vipera Berus, Daud.; Schlegel, 599, t. 21, fig. 17, 18. 
Col. Chersea, Linn.; Sturm, Fauna, t. The head-shield and colour 
very variable. 
Inhabits Europe; Britain. Brit. Mus. 
2. Pelias dorsalis. Lead-coloured (discoloured ?) ; crown blackish, with 
a diverging streak from each occipital plate, a narrow streak over the tem- 
ple, and a broad, black, even-edged vertebral streak ; loreal plates 3. 
Inhabits ? Brit. Mus. 
b. Head ovate, rounded on the sides, crown entirely shielded. Nostrils be- 
tween 2 plates. Tail end simple, subcaudal plates 2-rowed. Sepedonina. 
VII. Sepedon. Scales keeled : loreal shields none ; 1 anterior and 3 
posterior ocular shields : subcaudal shields 2-rowed. Allied to Naja. 
1. Sepedon HcBmachates,M.euem. Vipera Daud. from Hce- 
machate, Lacep., ii. t. 3, fig. 2 ; Seba, ii. t. 58, fig. 1, 3. 
Inhabits Cape of Good Hope. Brit. Mus. 
Cuvier refers Col. V-nigrum, Scheuchz. t. 717, fig. 1 to this genus. 
c. Head depressed, shielded, prominent over the eyes. Nostrils between 2 
shields. Tail ending in a recurved spine ; subcaudal plates 1 -rowed. Acan- 
thopina. 
VIII. Acanthopis. Head-shield rather scale-like ; loreal shields none ; 
eyes surrounded beneath with a series of shields ; labial shields large ; 
scales smooth ; anterior dorsal keeled. 
1. Acanthopis antarctica. Boa antarctica, Shaw, Misc. t. 35. Acan- 
thopis Brownii, Leach, Zool. Misc. i. t. 35. Variable in colour. 
Inhabits New Holland ; called Death Viper P Brit. Mus. 
