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River Road Alterna
Adult. Both alterna and blair's phase patterns occur on the
River Road, the alterna phases being the more common type. There has always
been disagreement amongst alterna aficionados as to which phase
category an animal like the one pictured above belongs. Purists will
contend that animals with any orange banding at all are blair's phase
while moderates believe that if the orange is greater than "X" number
of scales in width it is a blairs and below "X" it is an alterna phase.
At Vivid we simply call animals such as this specimen "intermediates"
and use the term as a catch-all for the myriad of middle ground
blair's/alterna pattern types.
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