Dictionary of Ichthyology

coracoid = the lower, paired endochondral bone on which the pterygials or actinosts of the pectoral fin rest. Dorsally it has a notch which, with a similar ventral notch on the scapular, frames the scapular foramen. It attaches anteriorly to the cleithrum.

Cyprinus carpio shoulder girdle, C = cleithrum, E = scapula, PC = coracoid, F = foramen, A = attachment of fin from Kingsley's "Textbook of Vertebrate Zoology, 1906. Photograph by Brian W. Coad.