"Black Tsathoggua moulded itself from a toad-like gargoyle to a long, sinuous line with hundreds of rudimentary feet, and a lean, rubbery night-gaunt spread its wings as if to advance and smother the watcher."
H.P. Lovecraft & Hazel Heald, The Horror In the Museum
"He was very squat and pot-bellied, his head was more like a monstrous toad than a deity, and his whole body was covered with an imitation of short fur, giving somehow a vague sensation of both the bat and the sloth. His sleepy lids were half-lowered over his globular eyes; and the tip of a queer tongue issued from his fat mouth."
Clark Ashton Smith, The Tale Of Satampra Zeiros
"In that secret cave in the bowels of Voormithadreth . . . abides from eldermost eons the god Tsathoggua. You shall know Tsathoggua by his great girth and his batlike furriness and the look of a sleepy black toad which he has eternally. He will rise not from his place, even in the ravening of hunger, but will wait in divine slothfulness for the sacrifice."
Clark Ashton Smith, The Seven Geases