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Bands
are broad on top and narrow along the sides.
The skin is loose and hangs in folds,
with tiny granular scales. |
Bands
are the same width throughout.
The skin is not loose and it has large scales. |
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Small scales on the head
and does not have a yellow lip. |
Large scales on the head
and has yellow lips. |
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Tail
is tapered but not flattened. |
Tail
is flattened into a paddle-like shape. |