INTRODUCTION: Precisely the same remark may be made with respect to his new genus Rampxoxantuus for Aulaco- ramphus prasinus and A. albivitta, inasmuch as they do not in my opinion offer sufficient generic differences to warrant their separation from the other birds with which I have associated them. The birds comprising his genus Prrerivorus I consider to belong to three distinct genera. The first —piperivora—is a true Selenidera—the fourth, Bailloni—an Andigena; the second and third—zwridis and inscriptus—might perhaps be separated ; but in that case ezdis would stand alone in one genus and inscriptus with Humboldti in another, for which the term GraMMARHYNcHUs might be an appropriate appellation.