What is the area called where the neck muscles form a delta (front, just above the sternum)?

It's so sexy it must have a sexy name!

(not on skeletal base, I think something with ....-delta)
To be more precise; I mean the triangular shape that is formed in between both "Musculus sternocleidomastoideus" (nodding muscles) provided there is not too much fat. -> Trapezius Delta would sound fairly kinky but I think it refers to the back, whereas I'm speaking of the front view. Maybe it doesn't have it's own medical name since it refers to something in between, but I've read it before in German, and it could also stem from literature.