1. Beiträge zur Kenntnis der Gephyreen nach Untersuchung der im Göttinger Museum befindlichen Sipunculiden und Echiuriden;Augener;Archiv für Naturgeschichte,1903
2. Further notes on the sipunculids of New Zealand;Benham;Transaction and Proceedings of the New Zealand Institute,1904
3. Gephyrea inermia. Australian Antarctic Expedition 1911-1914, under the leadership of Sir Douglas Mawson;Benham;Scientific Reports of the Australian Antarctic Expedition Series C, Zoology and Botany,1922
4. Notes on the sipunculids of Laguna Beach;Chamberlin;Pomona College Journal of Entomology and Zoology,1920