Hartmann-Schroder 1977. The genera Ceratocephale Malmgren, Olganereis n.gen.. and Profundilycastis n.gen. (Nereidae, Polychaeta) with a key to the nereid genera without chitinous paraguaths. Essays on polchaetous annelids. In Memory of Dr. Olga Hartman. Allan Hancock Foundation., University of Southern California, Los Angeles 1977: 1-604., 1977: 267-278,illust. Chapter pagination: 141-155,illust