A new species of grenadier, genus Macrourus (Teleostei, Gadiformes, Macrouridae) from the southern hemisphere and a revision of the genus Author Mcmillan, Peter Author Iwamoto, Tomio Author Stewart, Andrew Author Smith, Peter J text Zootaxa 2012 3165 1 24 journal article 45629 10.5281/zenodo.279731 8d3cbf14-7749-44a4-a9f8-66a6a03c56df 1175-5326 279731 Key to species of Macrourus 1. Underside of head without scales or with up to 8 small patches of scales (usually less than 10 small scales per patch) adjacent to angles of the mouth and at posterior of head, rarely any scales on lower jaw (Fig. 12).............................. 2 - Underside of head with scales present in rows (not just small patches) extending forward from posterior part of head to below anterior margin of orbit or nostrils between suborbital ridge and mouth, and scales on base of lower jaw (Fig. 13)......... 3