Following on from the earlier H.P. Lovecraft drawing, here’s one of his nasty creations: Brown Jenkin.
Browny appears in the 1932 short story The Dreams in the Witch House (which I read as part of this Penguin collection), and is described thus:
“…it had long hair and the shape of a rat… its sharp-toothed, bearded face was evilly human while its paws were like tiny human hands. Its voice was a kind of loathsome titter, and it could speak all languages.”