SSnakess - Members discuss whether or not the pearl morph of rainbow boas is dominant, recessive, or polygenic.
RedtailBoa.net - Photos of a pretty and very iridescent pearl Brazilian rainbow boa.@ RedtailBoa.net
Herp Ireland - Here is a nice thread with some very pretty Brazilian rainbow boas.
Captive Bred Reptile Forums UK - Take a peek into a clutch of Burmese python eggs that contains a lovely pearl het labyrinth.
LeopardGeckoForum.com - A member shares a link to document that shows the development of the black pearl leopard gecko morph from hatchling to adult.
Morelia Forums - Follow along with this thread as Henrik Herold proves the pearl Antaresia perthensis (anthill python) to be a recessive genetic mutation.