Ichthyological Research has established a new category, monograph, to encourage the publication of a paper including a comprehensive treatment of a subject in any field related to fishes. Twenty-five pages are free of charge for both members and non-members of the Ichthyological Society of Japan. For details, please refer to the website of Ichthyological Research (http://www.springer.com/life+sciences/animal+sciences/journal/10228).

The Ichthyological Society of Japan

Mamoru Yabe, President

Hisashi Imamura, Editor-in-Chief

Yoshiaki Kai, Managing Editor of Ichthyological Research