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The scales may be ossified or tubercular, as in the case of lizards, or modified elaborately, as in the case of snakes. [1] The scales on the top of lizard and snake heads has also been called pileus, after the Latin word for cap, referring to the fact that these scales sit on the skull like a cap. [2]
Scales usually vary in size, the stouter, larger scales cover parts that are often exposed to physical stress (usually the feet, tail and head), while scales are small around the joints for flexibility. Most snakes have extra broad scales on the belly, each scale covering the belly from side to side.
Common rough-scaled lizards are medium-sized lizards each with a small head, body, and a long tail. The frontonasal is divided and has small body scales in 42 to 58 rows at the midline. [2] The backs of these lizards are brownish grey with narrow dark blotches and rows of pale spots. [2]
Longisquama means "long scales"; the specific name insignis refers to its small size. The Longisquama holotype is notable for a number of long structures that appear to grow from its skin. The current opinion is that Longisquama is an ambiguous diapsid and has no bearing on the origin of birds .
Glass (legless) lizards look remarkably snake-like. We talked to wildlife experts to find out how to tell the difference. Is that a snake or one of NC’s three legless lizards?
The common chuckwalla is a large, flat-bodied lizard with a large, rounded belly, and a wide-based, blunt-tipped tail. [5] Reaching a total length of 20 in and a weight of 0.9 kg (2.0 lb). [ 9 ] Small scales cover its body, with larger scales protecting the ear openings. [ 5 ]
Squamata (/ s k w æ ˈ m eɪ t ə /, Latin squamatus, 'scaly, having scales') is the largest order of reptiles, comprising lizards and snakes.With over 12,162 species, [3] it is also the second-largest order of extant (living) vertebrates, after the perciform fish.
Meroles is a genus of lizards, commonly known as desert lizards, in the family Lacertidae. The genus contains eight species, inhabiting southwestern Africa , especially the Namib Desert . Description