Spider (The Super Mario Bros. Super Show!)

An Arachno Snifit is a large, black and red-legged type of spider which, judging from it's similar facial features to them, is a type of Snifit.

In The Super Mario Bros. Super Show! episode "Count Koopula", Mario, Luigi, Toad and Princess Toadstool, after jumping down a laundry chute and being deposited in Count Koopula's basement, found themselves menaced by several Arachno Snifits. Before these Arachno Snifits could attack her, Mario, Luigi or Toad though, Princess Toadstool managed to scare them away using a fireball spitting Magic Piranha Plant; interestingly, after being hit by a fireball spat by this Magic Piranha Plant, an Arachno Snifit exploded in a manner similar to a balloon.

Any other Arachno Snifits inhabiting the castle were presumably crushed when it collapsed after Count Koopula's defeat.