TW: Animal on animal violence, mentioned in past tense
"A good deal of interest was abroad concerning the dog which landed when the ship struck, and more than a few of the members of the S.P.C.A., which is very strong in Whitby, have tried to befriend the animal. To the general disappointment, however, it was not to be found. It seems to have disappeared entirely from the town. It may be that it was frightened and made its way on to the moors, where it is still hiding in terror.
There are some who look with dread on such a possibility, lest later on it should in itself become a danger, for it is evidently a fierce brute. Early this morning a large dog, a half-bred mastiff belonging to a coal merchant close to Tate Hill Pier, was found dead in the roadway opposite its master's yard. It had been fighting, and manifestly had had a savage opponent, for its throat was torn away, and its belly was slit open as if with a savage claw."
Heavy implications that the black dog was Dracula, himself, I'd say. Or a harbinger of the hell he planned to unleash, at the very least. But either is left to reader interpretation.
In any case, a fun correlation between black dog legends and vampires.
Especially since I also read somewhere else that one of a specific type of folkloric black dog, the Barghest, is "rumored to roam Whitby, the coastal town that appears in Bram Stoker's Dracula. In the Whitby section of the novel, the Count transforms into an enormous black dog-- a beast that may have been inspired by local Barghest legends. The Barghest also roves the moors around Whitby-- locals say if you're unlucky enough to hear its chilling howl at night, it means death is coming soon." --David Castleton's blog, The Serpent's Pen, from an article entitled "Britain's Black Dog Legends-- 7 Spooky Canines and Hellhounds."