There is, but IIRC it was a hell of a time to get it to work back in the day. Now, the emulator has moved to a more and more user unfriendly place, and renamed itself Higen as it does more than just SNES now. The most egregious example is how to play SNES games you have to use a program to create a folder out of your ROM. The idea is to make each individual ROM chip on the original cart its own file ala MAME, but they did it in the most annoying and hell to use fashion. it also destroys the possibility of using the ROM on a different emulator, or patching it to fix a bug/whatever.
I can't really recommend it for Mac use. Older versions would be fine for Windows and Linux, but as far as I know, Mac use is not recommended for people who don't want to fight the program to get it to work, and use other programs to even put your ROMs in the right freaking format.