The DHUBB, or EGYPTIAN MASTIGURE, as the lizard is indifferently called, grows to a considerable size, measuring when adult three feet in length. Its colour is green, variegated with brown, and is slightly changeable, though not to the extent that distinguishes the chameleon. The chief peculiarity of this lizard consists in its tail, which is covered with a series of whorls or circles of long, sharply-pointed, hard-edged scales. The very appearance of this tail suggests its use as a weapon of defence, and it is said that even the dreaded cerastes is conquered by it, when the lizard and the snake happen to find themselves occupants of the same hole. The ancients had a very amusing notion respecting the use of the spiny tail possessed by the Dhubb and its kin. They had an idea that, comparatively small though it was, it fed upon cattle, and that it was able to take them from the herd and drive them to its home. For this purpose, when it had selected an ox, it jumped on its back, and by the pricking of its sharp claws drove the animal to gallop in hope of ridding himself of his tormentor. In order to guide him in the direction of its home, it made use of its tail, lashing the ox "to make him go with his rider to the place of his most fit execution, free from all rescue of his herdsman, or pastor, or the annoyance of passengers, where, in most cruel and savage manner, he teareth the limbs and parts one from another till he be devoured." This very absurd account is headed by an illustration, which, though bad in drawing and rude in execution, is yet so bold and truthful that there is no doubt that it was sketched from the living animal. As it haunts sandy downs, rocky spots, and similar localities, it is well adapted for the Holy Land, which is the home of a vast number of reptiles, especially of those belonging to the lizards. In the summer time they have the full enjoyment of the hot sunbeams, in which they delight, and which seem to rouse these cold-blooded creatures to action, while they deprive the higher animals of all spirit and energy. In the winter time these very spots afford localities wherein the lizards can hibernate until the following spring, and in such a case they furnish the reptiles with secure hiding-places. Although the Dhubb does not destroy and tear to pieces oxen and other cattle, it is yet a rather bloodthirsty reptile, and will kill and devour birds as large as the domestic fowl. Usually, however, its food consists of beetles and other insects, which it takes deliberately. [Illustration: rocks and water] THE LEVIATHAN OR CROCODILE.