When the hands are held like paws of a tiger we get Vyaagraha Hasta.
Lets take a look at the Viniyoga Shloka (uses)
vyadhe bheke markatecha
suktau sanyujyate karaha
Shloka says that such a gesture is used to denote
- A Tiger
- A frog
- An Ape
- Nacre. Nacre is crystalline aragonite or calcium carbonate. Shellfish and mollusks excrete it when they are exposed to a parasite or a foreign body introduced into a shell. Nacre is Known for its shine and iridescence, and its coating on shells is called mother of pearl.
Note- Some call this gesture as Urnanbha.