Chap. xii. 
EEPTILES. 
38 
O' , 
itana, the males alone are furnished with a large 
hi'oat-pouch (fig. 33), which can be folded up like a 
an » a nd is coloured blue, black, and red; but these 
s PWdid colours are exhibited only during the pairing- 
season. The female does not possess ei'en a rudiment 
? tins appendage. In the Anolis cristatellus , acoord- 
ln 8 to Mr. Austen, the throat-pouch, which is bright 
re d marbled with yellow, is present, though in a rudi- 
la j-ntal condition, in the female. Again, in certain 
nther lizards, both sexes are equally well provided with 
. 1r °at-pouches. Here, as 
ln so many previous cases, 
] Ve See with species be- 
gging to the same group, 
e same character con- 
1 e d to the males, or more 
a, Sely developed in the 
Itl ales than in the females, 
? r equally developed in 
’ 0th sexes. The little li- 
^auls of the genus Draco, 
'. "eh glide through the air on their rib-supported para- 
j mtes > and which in the beauty of their colours baffle 
e scription ; are furnished with skiuny appendages to the 
•roat, “lifie the wattles of gallinaceous birds.” These 
e come erected when the animal is excited. They occur 
111 both sexes, but are best developed in the male when 
ari 'ived at maturity, at which age the middle appendage 
8 sometimes twice as long as the head. Most of the 
s Pecie8 likewise have a low crest running along the 
! and this is much more developed in the full- 
h r °wn males, than in the females or young males."’ 6 
Fig. 33. Sitana minor. Male, with the gular 
pouch expanded (from Gunther’s ‘Rep- 
tiles of India’). 
atl n these statements and quotations, in regard to Cophotis, Sitana 
raco , as well as the following facts in regard to Ceratophora, are 
VOL. xi. D 
