136 THE VIVARIUM. 
instance, when it is necessary to chean their Vivarium they will 
frequently not move if taken gently from the case, and put ona 
table or the top of another case until their own home is ready for 
their reception. They have, however, to be retaken in the hand 
quickly and quietly, for if they notice the intention of touching 
them they will dart away with considerable celerity. The illus- 
tration is an exact drawing of a Hardwicke’s Mastigure, in the 
position he assumed when taken out of his cage and placed on a 
board in front of the camera. 
Canon Tristram in speaking of the Dhabb or Egyptian 
Mastigure (U. spinipes), says that he kept one tame for some 
months, and that it was very docile ‘‘ and would come at his call.” 
He further mentions that the Arabs told him that this Mastigure 
is a match for the ‘‘ Horned Cerastes (C. hasselquistit), which often 
enters its holes but soon has its vertebrze dislocated by the vigorous 
blows of the Dhabb’s tail. The Dhabb is eaten by the Bedouin.” 
Hardwicke’s Mastigure has a naked tympanum and a tranverse 
fold of skin below the throat. The upper parts of its body are 
covered with exceedingly small granular scales of equal size. The 
animal’s tail possesses incomplete rings of spinous tubercles which 
do not encircle the lower side. The vential scales are smooth 
and small. There are both femoral and pre-anal pores. The 
toes are short, with keeled scales below; the fourth toe of each 
hind-foot is one-third longer than the third toe; the legs and 
claws are very strong. Dr. Giinther describes the colour of the 
Reptile as ‘‘lighter or dark yellowish grey or greyish olive, 
uniform, or clouded or with waved, blackish, tranverse lines ; 
sometimes a large black spot on the inner side of the femur.” 
This Lizard comes chiefly from the plains of Hindostan; it is 
said not to be found in Bengal. When fully grown, it sometimes 
attains a length of 16in. Every other species of Mastigure may 
be treated in confinement in the same way as suggested for the 
one just described. 
The Moloch Lizard (Moloch horridus) is one of the most extra- 
ordinary-looking Reptiles in existence. In its native country, 
Australia, it is also known as the ‘‘Thorn Devil” and the 
‘“Mountain Devil.” The head has two very large horn-like 
spines, above the eyes, and several other spines of smaller size. 
