They're only mentioned in the Japanese manual, as far as I know. :) There's actually four more that I didn't include (because they live on other islands); Becky, Tocky, Hocky and Wocky (bear, tortoise, eagle and monkey, respectively).
(I think that's all of them... And the naming trend is why my Sonic "self-insert" character, modeled after the rats in Sonic2, is named Cookie. XD)