The Purple Gypceros in some regions suggest that the venom of them is deadlier than the normal Gypceros.
The main thing different about this Gypceros is that it is able to live in hotter environments.
Scales can't be found on a Gypceros' skin, only a rubbery hide that is waterproof and absorbs a lot of damage. Their hide is also resistant against toxins and poisons, possibly caused by bacteria breeding on their hide.
They play dead mostly when they are exhausted. Some hunters are sent back to fight the same Gypceros they supposedly killed, when it fakes its own death.
Its hide gives off a strange scent.
The chic purple hide is en vogue. It works wonders at the Smithy.
Monster Hunter 4 - Purple Gypceros HAMMER gameplay by iCEMANnoob
Monster Hunter Online (MHO) Purple Gypceros Gameplay by Haris.aslind