<center>The only real differances between Cooks Tree Boas <i> (Corallus cooki) </i> and Amazon Tree Boas <i> (Corallus hortulanus) </i> are scalation and gereral differances in appearance.
Amazon Tree Boas can come in all colors and patterns. Amazons are slightly larger and thicker then cooks as well. The scalation is as follows:
Superalabials (11-15)
Infra labials (17-20)
Dorsal scale rows at mid body(38-59)
Ventrals (270-299)
Subcaduals (103-130)
Cooks Tree Boas are some what placid in appearance. I personally have never seen a brightly colored cooks nor do I ever expect to unless it's an intergrade. Cooks scalation is as follows:
Dorsal scale rows at midbody (35-47)
Subcaudals in males (103-119)
Subcaudals in females (105-119)
Anal entire loreolabials (2-5)
Scales between supraorlabials (5-10)
I have seen few true cooks available in the past in U.S. collections but there are a few in Europen collections as well.
Here are two links with some description regarding the two:
http://www.hamillreptiles.com/C.cooki.html
http://www.hamillreptiles.com/C.hortulanus.html
I hope this helps
Thanks,
Darren Hamill
http://www.hamillreptiles.com
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