194 
ZOOLOGY, 
bodied lizard, wliicli can change its color from a bright pea- 
green to a deep bronze-brown. The Gekko (Fig. 237, 
SphcBrodactylits) has bulbous toes. 
The horned toads [Phrynosoma, Fig. 238) are character- 
istic of the dry western plains; the body is bi'oad, flattened, 
and spiny. Their color is like that of the soil they inhabit. 
Fig. 236.— West Indian Anolis. From Liitken's Zoology. 
Like all other lizards, the horned toads can withstand a long 
fast; they will in captivity eat insects and take milk. 
Our most common lizard in the Middle and Southern 
States is Sceleporus undulahis; it is about six inches long, 
gray, with dark wavy bands, and may be seen in sunny 
glades running up the trunks of trees. The iguanas are 
