VIPERIDA. 89 
for, in other places, reference is made to cases where one and 
the other species have killed men in from three to five minutes, 
which facts rank them in deadliness beside the dreaded Naja 
tripudians; but these cases must be judged in the light of the 
fact that, when introduced into. one of the great arteries, or 
rather, veins, any poison (haying its deadly principle fully 
developed) kills with great quickness, hardly giving time to 
apply or administer any remedy with a hope of saving life. 
The following are the species, &ec., of this genus, viz. : 
No. Varieties. 
1. Vipera Daboia Russcllii (Gtinth.),. . . . 1. India. 
( Carinata (Giinth.), [ 2. IndiaandS. America. 
2. Vipera Echis, | Striata (nobis), | 4. South America. 
| Variegata, breasts <8 6 
Pee el oe “ 
: pres Arietans, He Biverevet we 
3. Vipera Echidna, Atropos, 44 sie * 
| Atropoides, | a ms 
Porphyriacus, ( 1. Australia. 
Australis, | 1 S 
4. Vipera Pseudechis, Scutellatus, es 
Carinata, 1. South America. 
Major, 2 Me ¥ 
5. Vipera Tropidechis carinata, . 1. Australia. 
6. Vipera Dendraspis angusticeps (Wiced’ 
7. Vipera Actractaspis irregularis ee South Africa. 
8. Vipera heterodon, ation { : sc oe ae 
9. Vipera achetulla laiocercus (Borneo), . . 1. 
or Ahetulla. 
10. Vipera bucephalus capensis (Boomschlange) 1. South Africa. 
. South America. 
6c“ 6c 
1 
( Bufocephalus, Ging 
Trigonocephalus, * 
Niger, | i. 
11. Vipera Lachesis, Acuaticus, 7 1 Gens Ss = 
Variegata, 1 | 
Dryiophis, | 1 
Os flavus, eee 
8 
