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Lizards
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Snakes
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1.
Slightly compresed body
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Cylindrical body
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2.
Two pairs of limbs
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Limbs are absent
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3.
Exoskeleton is not removed by
moulting
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Exoskeleton is removed periodically by moulting
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4.
Scales are uniform in size
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Scales are differentiated into plates and shields
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5.
Nictitating membrane is present
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Absent
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6.
Tympanic membrane is present
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Absent
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7.
Tongue is not bifid
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Tongue is bifid
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8.
They can hear air-borne sound
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They cannot hear air-borne sound
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9.
Urinary bladder is present
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Absent
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10.
Jaw bones are fixed
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Jaw bones are movable
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