1. Elasmo-Lab, Elasmobranch Research Laboratory, Sophie-Rahel-Jansen-Str. 83, 22609 Hamburg, Germany
2. Leibniz Institute for the Analysis of Biodiversity Change (LIB), Centre for Taxonomy and Morphology, Zoological Museum, Martin-Luther-King-Platz 3, 20146 Hamburg, Germany
3. ICHTHYS, Ichthyological Research Laboratory and Consultant, Hildesheimer Weg 13, 22459 Hamburg, Germany
4. IchtyoConsult, 6 bis rue du Centre, 91430 Igny, France
5. W&I Associates Co., Ltd., 1020-39 Kudencho, Sakae-ku, Yokohama 247-0014, Japan