Are you sure that is not a horridum skull? It looks more like horridum than suspectum. Nice photo.
:......not hard to see how they're able to hang-on so well once they get a hold of you, now is it? It's no wonder you bleed so profusely when you're forced to to give 'em a good yank when bitten. It's enough to make the hair stand up on the back of my neck just thinking about it after having once gone through the experience, myself.