Hmm...that is good-looking (as all multiflorals are) but it does seem odd. Doesn't seem like an adductum, although I've never heard of the "true rare" form. There is var. anitum, which looks like a traditional adductum with the exception of a hellishly dark dorsal, advertised as "pitch black" by some. I've seen pictures of anitum, and they do seem dark...black is a stretch though.
Maybe it's adductum x glanduliferum? I think that cross might be registered as Predacious but don't recall for certain. I know Antec has a million pics though.