So tonight in class we learned the Kimura and reverse Kimura submissions. I'm a bit confused as to the naming conventions though, as I always through a Kimura had the opponents arm at their side, and the reverse Kimura (which I always knew as an Americana) had the opponents arm towards their head. Kimura: Americana (Reverse Kimura): but our instructor was calling the americana a kimura, and what I call the kimura was called a reverse kimura. I'm quite confused. traditionally, which of the above is a kimura and which is a reverse kimura/americana?