LIZARDS, 121 
far as the muzzle. The brilliant goitre is thus alternately extended 
and relaxed several times. After being thus ‘signalised’ for a few 
seconds, one darts towards the other, who usually runs away, appa- 
rently as if wishing to be caught.” Elsewhere Mr. Gosse describes 
the noosing of an example of a fine Lizard of this Anolis group, the 
Dactyle Eduardsti, which is also a native of Jamaica, “ about a foot 
long, and of a lively green colour. He was very savage, biting at every- 
thing near: presently his colour began to change from green to 
blackish, till it was of a uniform bluish black, with darker bands on 
the body, and a brow nish black on the tail; the only trace of gr een 
was just around the eyes.” He was placed i in a cage, and “‘at night,” 
continues Mr. Gosse, “I observed him vividly green, as at first—a 
token, as I presumed, that he had in some measure recovered his 
equanimity. The next day he continued very fierce. I hung the 
cage out in the sun; two or three times in the course of the day I 
observed him green, but for the most part he was black. The changes 
were rather quickly accomplished. The food of this Lizard appears 
to include both vegetable and animal substances. I was never able 
to induce one to eat in captivity ; but the dissection of several has 
given me this result. Thus in one I have found seeds and farinaceous 
substances ; in another fragments of a brilliant beetle of the Weevil 
group. I once observed one deliberately eat the ripe glass-berries 
munching half of one at a mouthful.” * 
Thus far we have treated of chiefly arboreal Zgwanide,; and 
although a marine Lizard, Zrachycephalus cristatus cannot well be so 
designated, it nevertheless belongs to the same particular series. We 
have next a long series of mainly terrene genera of the same great 
American family, in which the body is subtrigonal or depressed. As 
many as twenty-two genera, with sixty-one species of the terrene 
Iguanide, were catalogued by Dr. Gray in 1845, and a good many 
have since been added. There is a corresponding series in the kin- 
dred Old World family of Agazcid@, and in neither instance are the 
majority of them ground- frequenting Lizards to any great extent. 
Thus, of Dr. Gray’s first genus Z7ofzdolipis (so named from its large 
keeled scales), and of which as many as nine species are given from 
Mexico, a tenth (7: wudulatus, of the United States) is described by 
Professor Holbrook to inhabit chiefly the pine forests, where it is often 
found under the bark of decaying trees ; selecting old fences for its 
basking-place. “It is exceedingly rapid in its motions, climbing with 
great facility to the tops of trees, and is hence not taken alive without 
* « A Naturalist’s Sojcurn in Jamaica,” by P. H. Gosse. 
