Bobcat is a Hokkaido Wolf with presumably white fur.
He has black spots on his face and black stripes on his back and tail. He also has black markings around his eyes and dash of dark fur on his muzzle.
In Meteor Gin, he is described as looking unusual for a wolf.
Ginga Nagareboshi Gin
He awaits Gin's groups arrival with Black Snake. He never fights and his technique isn't seen because Juga interrupts the fight between the two groups before it's his turn.
When he tries to stop Gin from following Juga, he is knocked aside and eventually defeated by Raiga, Sakon and Ukon.
He is not seen again after this and likely died during the earthquake which destroyed the Underworld.
See more pictures in Bobcat/Gallery.