"looked at him with dark brown eyes as cold and quizzical as a desert dog's"

Just as Gaiman described Mr Ibis as being bird like in his manner and movements as a nod to his alter ego Thoth, so Jacquel is depicted with dog like references, reminding us that he is a personification of Anubis.

Anubis Jackal
GNU Free Documentation LicenseAnubis Jackal - Credit: Jeff Dahl