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Like the rest of the lizard's body, it is covered with small, oval, keeled scales. [ 11 ] This monitor has the ability to increase the size of its mouth by spreading the hyoid apparatus and dropping the lower jaw to eat large prey , a process similar in appearance to that of snakes , although the jaw of the mangrove monitor remains rigid. [ 13 ]
An adult salamander generally resembles a small lizard, having a basal tetrapod body form with a cylindrical trunk, four limbs, and a long tail. Except in the family Salamandridae, the head, body, and tail have a number of vertical depressions in the surface which run from the mid-dorsal region to the ventral area and are known as costal ...
The body is laterally compressed, and is covered with imbricate keeled scales. A strong transverse gular fold is present, but a gular pouch is absent. The limbs are very long, and the infradigital lamellae have a median tubercle-like keel. Femoral pores are absent. The tail is very long, and is round in cross section.
The body of the lizard is dark green with rings of yellow spots. [12] The tail is banded yellow and black and is extremely long. Its teeth are long, straight, and sharp. Its claws are prominent and strongly curved. [13] Males reach a considerably larger size than females in both weight and length, and also tend to have a more robust head. [7]
A common state in which it may be seen (as stated by T. C. Jerdon) is, seated on a hedge or bush, with the tail and limbs black, head and neck yellow picked out with red, and the rest of the body red. Jerdon and Blyth agree that these bright, changeable colours are peculiar to the male during the breeding-season, which falls in the months of ...
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In many cases the cast skin peels backward over the body from head to tail, in one piece like an old sock. A new, larger, and brighter layer of skin has formed underneath. [ 5 ] [ 7 ] An older snake may shed its skin only once or twice a year, but a younger snake that is still growing may shed up to four times a year.
Scales may be piliform (hairlike) or flattened. The body or "blade" of a typical flattened scale consists of an upper and lower lamella with an air space in between. The surface towards the body is smooth and known as the inferior lamella. The upper surface, or superior lamella, has transverse and longitudinal ridges and ribs.