LIZARDS. ' 143 
simply covered with a lid; for sometime or other the closing of 
the hole will be forgotten, and the captives, being able to climb 
the glass sides of their case, will get free, a circumstance which is 
likely to lead to the annoyance of the owner and the death of the 
fugitives. Such an arrangement as that which I have just 
described may be adapted to almost any Vivarium in which 
Lizards are kept. 
Fig. 49 is a very good illustration of the Anolis grahami, and it 
will give the novice in these matters an idea of what these crea- 
tures are like in shape. This species is very suitable for confine- 
ment. M. Boulenger, in describing its colouring, says that it is 
‘*oreen, purplish, or brownish above, usually with darker reticu- 
lation enclosing round light spots; females sometimes with a few 
angular cross-bars on the back, with or without a light vertebral 
band ; throat with dark reticulation.”” The entire length is about 
tin. long, of which the tail measures 4in. 
The members of the genus Anolis vary in length from 4in. to 
18in. They come from Tropical and Subtropical America. 
The Tuberculated Iguana (Iguana tuberculatw) is a large 
Lizard whose habitat is Tropical America; while in this 
country it should always be kept in a heated Vivarium, except 
perhaps during the hottest part of the year. It is an interesting 
animal, but it is oftener seen in public zoological gardens than in 
a private collection of Reptiles. Since it occasionally grows to a 
length of more than 43ft., it is wise for the amateur to procure a 
specimen when it is young and small. 
It may be fed, while in confinement, upon bananas, grapes, 
lettuces, watercress, and the like. It should also be provided 
with a tree, or a portion of a tree, to climb on and a suitable bath 
to bathe in. This Iguana can be bought, when in the market, 
for about £1. 
The animal has a rather large head, with a rounded snout; but 
perhaps the most noticeable parts of it are its large non-dilatable 
gular appendage, with a kind of crest in front, and its curious-look- 
ing toothed crest which runs along the neck, back, and tail. The 
crest is usually most developed in the full-grown males. The ear- 
opening is distinct. The scales are small, the ventral scales being 
the larger. The tail is long, powerful, and compressed. The upper 
