That is a t.bridgesii. No way is that var monstrose, lol.
Monstrose bridgesiis either look like a smooth hulk's dick with rarely any spines (clone A), or a clumping monster with few, but large spines.
I reccomend let it go dormant in the winter and give it real good lighting in the summer.
:thumbs up:
There's no way that's monstrose, that looks like a standard bridgesii.