Curious as to how you tell G siamensis and G. smithii apart.
Hi,
of course they do differ in some aspects of pholidosis and also slightly in the number of preanal pores (10-13 for siamensis, 11-16, mostly at least 14 in smithii).
Siamensis only have 11-16 lamellae at their 4th toe, whereas smithii do have
20-26 .
But its much easier to tell the difference at a glance:
Smithii always do have a Y shaped marking on the head (can only temporarily be overseen if the animal is stressed and very dark, like in the pic above) , which siamensis
never have. Also
smithii can grow bigger (max 38 cm vs max 30cm),are of a more slender appearance and more greenish than
siamensis, which on the other hand have larger whitish markings and rougher scales. Also the dark bands are much more prominent in most
siamensis than in most
smithii.
The vent of
siamensis always is plain whitish, whereas the belly of
smithii is yellowish and can be speckled with darker spots. Aside from the green eyes (which are darker in
siamensis), both species do look quite different in real life. The call of the two also is very different.
For comparison hier an adult female (this one btw already is the
siamensis specimen most similar to
smithiii, I have ever seen) and a baby siamensis: