Sentence:  Two benches, shaped in sections of a circle, nearly enclosed the hearth; on one of these I stretched myself, and <WSD>Grimalkin</WSD> mounted the other. ... He [Joseph] cast a sinister look at the little flame which I had enticed to play between the ribs, swept the cat from its elevation, and bestowing himself in the vacancy, commenced the operation of stuffing a three-inch pipe with tobacco; ... 
Meaning of the word marked with <WSD> tags:  A cat, especially an elderly female.