California Laws Regarding Reptiles and Amphibians

Family Bufonidae -Toads: Bufo marinus, Bufo paracnemis, Bufo horribilis (Giant toad or marine toad group) and all other large toads from Mexico and Central and South America.

Looks like your s**t out of luck. Those are the two big ones, cane toads, rocco toads (also sometimes called suriname toads; which is not correct).

Although it's not listed, the Colorado River toad would also be out as it's range extends down into Mexico.

http://www.google.com/imgres?q=Color...1t:429,r:2,s:0

I can see why though, if any of these breeds where to get loose into the wild in Cally I'm sure they'd do well. Conditions are probally fairly similiar to Australia with fairly limited natural prediation.