colin
New Member
Posts: 45
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Post by colin on Mar 12, 2006 9:38:22 GMT
Can anyone give me an accurate way of distinguishing the two species apart,without D.N.A. or range and distribution.
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phil
Full Member
Posts: 233
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Post by phil on Mar 12, 2006 16:05:44 GMT
certainly not easy colin, but bilineata is usually a more uniform green all over as opposed to more dark spots or blotches on viridis, but this is by no means foolproof.
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Post by adamanuran on Mar 13, 2006 10:10:20 GMT
The juveniles are generally easier to separate than adults, I shall try and find some pics of juvies i have had before.
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Post by Iowarth on Apr 4, 2006 17:08:53 GMT
I was holding off in the hope that someone could post pics. I have plenty - but they only confirm that adults are virtually indistinguishable. I, for one, do not agree with this new species split - and I am not alone in this. They will interbreed and produce viable young through successive generations (that is, I have done this). I believe that the original sub-specific separation remains correct and it is the level at which species differentiation is determined by genetics that needs revising. As for telling the two apart as pure generalisations bilineata females often have a blue tint to the throat - viridis females seldom. Bilineata females are very often extremely heavily marked, viridis often quite plain green or light markings. Juveniles, bilineata normally have green throats, viridis white or yellow. BUT all of these statements are generalisations and both will exhibit features more commonly held by the other. Even the juvenile definition which is about the best doesn;t work. I have had a clutch of 20 pure bilineata produce 10 young with green throats 8 with white and 2 with yellow!
Chris
Co-ordinator Sadn Lizard Captive Breeding Programme
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