Half black

Well as the name suggest half of the body is black. From my experience it seems x-linked. There are rumors about Y-linked version.

halfblack (stoerzbach and het. asian blau as well)
Half black with nice metal gold expression
Half black
magenta half black from Bolesław Gaweł
Red, yellow halfblack from Grzegorz Prusinowski
Classic halfblacks from Grzegorz Prusinowski