An articulated polychaete maxillary apparatus recovered from a bedding plane exposure in the Carboniferous Kittanning Formation of western Pennsylvania is described. The specimen exhibits a number of characters in common with modern members of the family Eunicidae, but differs in lacking the interlocking ridge and furrow system on the bases of the first maxillary elements, and particularly in the absence of jaw calcification which characterizes modern eunicids. The new genusBrochosogenys is erected to incorporate this species (Brochosogenys bipunctus n. sp.) and 2 additional species previously described from the Carboniferous-Lower Permian:B. siciliensis (Corradini & Olivieri 1974) n. comb. (genotype) andB. reidiae (Hinde 1896) n. comb.