The Sipunculids of the Eastern Coast of North America
Washington DC: Government Printing Office, 1913. First printing. Paperback. Printed paper wraps, clean unmarked text, illustrated, pp. 373-437 + plates, Very Good+ copy, wraps with some soil/discoloration, wraps also with light edgewear. No. 1959.--From the Proceedings of the United States National Museum, Vol. 44, pages 373-437, with Plates 58-62...