Legless lizard | 台北市立動物園資訊網

Leglesslizardmayrefertoanyofseveralgroupsoflizardsthathaveindependentlylostlimbsorreducedthemtothepointofbeingofnouseinlocomotion.

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Common name for a lizard without obvious legs

Legless lizard may refer to any of several groups of lizards that have independently lost limbs or reduced them to the point of being of no use in locomotion.[1] It is the common name for the family Pygopodidae.[2] These lizards are often distinguishable from snakes on the basis of one or more of the following characteristics: possessing eyelids, possessing external ear openings, lack of broad belly scales, notched rather than forked tongue, having two more-or-less-equal lungs, and/or having a very long tail (while snakes have a long body and short tail).[1] Every stage of reduction of the shoulder girdle —including complete loss— occurs among limbless squamates, but the pelvic girdle is never completely lost regardless of the degree of limb reduction or loss. At least the ilium is retained in limbless lizards and most basal snakes.[3]...