New York, N.Y. : American Museum of Natural History
Abstract
15 p. : ill. ; 26 cm."Nine species of three species groups of Cholus, subgenus Aphyoramphus, of South America are reviewed. Four of these are new: breviscapus, goniaeus, impunctus, and seabrai"--P. [1].Includes bibliographical references (p. 14-15)
