Latin for beaver

I know this is bizarre, but I have confidence that the Dopers will come through. I need to know the Latin word for beaver (as in the animal). Please help!

Here’s you go.

buccula -ae f. [a small cheek]; of a helmet , [beaver, visor].

castor -oris m. [the beaver].

castoreum -i n. [an aromatic excretion obtained from the beaver].

From this site: http://catholic.archives.nd.edu/cgi-bin/lookdown.pl

Thanks!