Cheers Steve A. I guess I'm gonna have to try and do somethign about my reputation!!!
You can eat them raw, but its liek trying to chew a bicycle inner tube.
Best bet is to shred them and either stir fry in Chinese dishes, add to Thai soups or use in stews and casseroles.
I'm not to keen on them just fried, as again - chewing inner tubes.
They do add an extra element to ommelettes and are a good source of protein.
As for the naming, the two are related species and the Auricularia litterally means 'Ear-like". AFAIA all member of this genus are ear-like jelly fungi, where are the other species has varied forms. But don't quote me, I ain't an egg-squirt.