For legs and their homologues we have the word "limb" (or should I say fins and their homologues? After all, cladistically we're all fish!) but there hasn't bee

For legs and their homologues we have the word "limb" (or should I say fins and their homologues? After all, cladistically we're all fish!) but there hasn't been a need for a term for "head and its homologues". At least not until now, I guess.