NOTE ON DUPLICATED PUBLICATION. Banse (1977) reported that Malmgren published this work in two versions. This book form is said to be published before the journal form. The typesetting differs, and Ceratocephale is spelled Ceratocephala in the journal version. Banse (1977) explains thus: "Malmgren published his new name and the diagnosis twice, in a book (1867 a) and in a journal (1867 b); the latter is the usually quoted publication. The spelling in 1867 a was Ceratocephale, but Ceratocephala in 1867 b. The two publications differed also in pagination and in other details (e.g., the units used in the text for length measurements), and hence must have been typeset twice. The second publication appeared in the Reports of the Proceedings of the Academy in Stockholm; the title page of the Proceedings for 1867 states that they were issued in 1868 but the last page of Malmgren's article was printed in 1867. An indication of the priority is the date, 5 April 1867, of the foreword of the book, whereas the paper was read at the Academy meeting of 10 April 1867. Also, the first user of Malmgren's new generio name, Ehlers (1868), cited the book. We assume that the book became available first and was hence also printed first."