The Mediterranean species of Hornera Lamouroux, 1821 (Bryozoa, Cyclostomata): reassessment of H. frondiculata (Lamarck, 1816) and description of H. mediterranea n. sp. Author Harmelin, Jean-Georges Station marine d’Endoume, OSU Pytheas, MIO, GIS Posidonie, Université Aix-Marseille, F- 13007 Marseille (France) jean-georges. harmelin @ univ-amu. fr / jg. harmelin @ gmail. com harmelin@gmail.com text Zoosystema 2020 2020-10-23 42 27 525 545 journal article 9694 10.5252/zoosystema2020v42a27 74c4d110-f574-4169-90e1-a5f2c7e34602 1638-9387 4134444 urn:lsid:zoobank.org:pub:08634080-E772-41F1-BDA7-D1AAD200A2BF Genus Hornera Lamouroux, 1821 TYPE SPECIES. — Hornera frondiculata Lamouroux, 1821 (synonym of Retepora frondiculata Lamarck, 1816 , see below), by original designation.