Springfield, Mass.: G. & C. Merriam, 1913, →OCLC. “supernumerary”, in OneLook Dictionary Search. <span class="searchmatch">supernumary</span>, supernumery (misconstructions) supererogatory...
with an introduction to Primates[5], volume 1, →ISBN, Mammae, page 18: <span class="searchmatch">Supernumary</span> or vestigal mammae may occur anywhere along the mammary line extinding...