Regular Guillotine - involves the attacker wrapping the defenders head with one arm till that arm gets under the chin. The attacker's second arm will come in and grab their other wrist as a support arm. High-elbow guillotine. This guillotine is very similar to the classic guillotine except the wrapping arm shoots deeper and the support arm extends over the back of the defender.
Arm-In Guillotine
Anaconda - The wrapping arm goes from the neck and all the way to the armpit - locked up a rear-naked choke grip as you roll under opponents body. Compress opponent's head with chest. Hook leg to make it tighter.
D'Arce
The D'Arce choke involves threading the arm under the opponent's armpit and locking the hands around the neck.