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Abstract
The flabelligerid genus Flabelliderma Hartman, Citation1969 is redefined and its type species is re‐established. In comparison with Flabelligera Sars, Citation1829, the diagnostic features include the fusion of papillae forming tubercles, often adhering sediment particles, and notopodial lobes forming large ovoid lobes. Four species are described and presented as new combinations, and three others were previously undescribed; thus the species included are F. papillosa (Essenberg, Citation1922) from southern California, F. berkeleyorum n. sp. from Washington, F. claparedei (de Saint‐Joseph, Citation1898) from the Bay of Biscay, F. gourdoni (Gravier, Citation1906) from Antarctica, F. lighti n. sp. from Guadalupe Island, western Mexico, F. ockeri n. sp. from southern California, and F. pruvoti (Fauvel, Citation1930) from New Caledonia.
Acknowledgements
During my sabbatical I enjoyed the warm support of several colleagues. Kristian Fauchald (USNM) and Len Hirsch allowed me to invade their home and I thank them for their unlimited warm hospitality. Leslie Harris (LAMNH) and David Ocker provided a nice home, transportation and endless warm conversations in Los Angeles. My much admired and appreciated friend, Fredrik Pleijel (MNHN), took charge of all the issues concerning the loan of Paris museum materials. Patrick Gillet (IRFA) made some room in his lab and was very helpful with the use of microscopes, library and the Fauvel‐Rullier‐Amoureux slide collection. Ruth Barnich, Penny Berents, Mary E. Petersen, Emma Sherlock, Anna Zhadan, Markus Böggemann, Harlan K. Dean, Dieter Fiege, Alex I. Muir, and Greg Rouse were extremely helpful by providing photocopies of several publications from their impressive libraries. Alex Muir, Danny Eibye‐Jacobsen, Fredrik Pleijel, Kirk Fitzhugh, and Kristian Fauchald were extremely useful and generous in helping me to cope with several nomenclatural problems, and Danny made several important suggestions to improve this contribution. Several colleagues also shared their views on phylogenetical or nomenclatural issues on flabelligerids or other groups. For this, I thank Luis F. Carrera‐Parra, Chris Glasby, Alex I. Muir, and Kristian Fauchald, whose ideas have been always welcome, although they usually imply another research project. Further, this research could not be possible without the kind and careful support from the colleagues, curators, and collections managers of many museums or research institutions. In alphabetical order by name (ladies first) they were Emma Sherlock and Miranda Lowe (BMNH), Elin Sigvaldadottir and Karin Sindemark (SMNH), Leslie Harris, Kathy Omura and Kirk Fitzhugh (LAMNH), Norma Emilia González (ECOSUR), Birger Neuhaus (ZMB), Robert van Syoc (CAS), and Tarik Meziane (MNHN). Funding was provided by the Fulbright Foundation, ECOSUR, LAMNH, and MNHN.