t98 NATURAL HISTORY. 
325. The Geckos, Fig. 160, are nocturnal Lizards, very 
numerous in the southern portion of Asia. They are con- 
Fig. 160.—Gecko. 
cealed in crevices in the day, but come forth at night in 
search of their insect prey. They run about on the 
smooth walls and ceilings with perfect ease, their feet 
being furnished with an apparatus like a boy’s sucker. 
326. The Iguana family is a very extensive one. It 
contains over one hundred and fifty species, many of 
Fig. 151.—Tuberculated Iguana. 
