There are so many that look alike, but a friend gave me seeds for ones that looked like yours.  He called them "Peter Peppers"and here. Except, like the ones in these links they were often malformed. Oops, I've just discovered the source of their name!  Anyway, they were pretty hot and the plants prolific producers with beautiful waxy leaves. One year I canned 10 pint jars from just three or four plants.  Maybe yours are just cayennes after all.

I can swear there ain't no heaven but I pray there ain't no hell. _ Blood Sweat & Tears