Scientific note on the presence of Cephalopyge trematoides (Chun, 1889) from Canary Islands waters

6 SPIXIANA 40 1 6 München, August 2017 ISSN 0341-8391 Scientific note Scientific note on the presence of Cephalopyge trematoides (Chun, 1889) from Canary Islands waters (Mollusca, Gastropoda, Phylliroidae) Fátima Hernández*, Alejandro de Vera*, Fernando Lozano Soldevilla*, Francisco García-Talavera*, Neliann Collazo* & Eugenio Fraile-Nuez** * Fátima Hernández, Alejandro de Vera, Fernando Lozano Soldevilla, Francisco García-Talavera &, Neliann Collazo, Museo de Ciencias Naturales de Tenerife (Museo de la Naturaleza y El Hombre), Calle Fuente Morales s/n, 38003 Santa Cruz de Tenerife, Spain; e-mail: [email protected] ** Eugenio Fraile-Nuez, Instituto Español de Oceanografía (IEO) C.O. de Canarias, Dársena Pesquera PCL 8, 38180 Santa Cruz de Tenerife, Spain The nudibranch species Cephalopyge trematoides (Chun, 1889) is herein mentioned for Canary Islands among plankton samples captured during the cruise 1013 (St. 23, 1st November 2013; Lat 27.6850, Long –18.1368; 200 meters-surface haul) from the VULCANO project. Holoplanktonic nudibranch molluscs are very rare in pelagic samples, they are highly specialized and their pelagic larval stages complete their cycle in the open sea. The family Phylliroidae is taxonomically poorly known and includes two genera, Phylliroe Péron & Lesueur, 1810 with presumably two species (Bouchet 2011), and the monospecific Cephalopyge Hanel, 1905. With respect to the distribution of these species in Western Atlantic waters, Bergh (1871) & Abbot (1974) cite Phylliroe bucephala for the coast of Florida and the Bermudas. In North-Eastern Atlantic waters, excluding the old records of Phylliroidea far from the Canary Islands (Odhner 1931) and the “Galathea” and “Atlantide” cruises near the African coast (Van der Spoel 1970), a first record of P. bucephala for the Canary Islands plankton has already been made (Hernández & Jiménez 1996). The last records of planktonic nudibranchs in North Eastern Atlantic waters referring to Cephalopyge trematoides (Chun, 1889), captured during the TFMCBMCV/98 cruise (Natural Sciences Museum of Tenerife) in the Cape Verde archipelago (Hernández et al 2001). Previous records were made by Chun (1889) and Odhner (1931) from the Central Atlantic Ocean, thus far away from the Canary Islands; and from Selvagens archipelago by Hernández & de Vera (2010). Acknowledgements. This work was supported by the VULCANO I project supported by the Spanish Commission of Science and Technology (CTM 2012-36317). The authors wish to thank Dr. Eugenio Fraile-Nuez and his team for their help during this research and the campaign. References Abbot, R. T. 1974. American seashells. The Marine Mollusca of the Atlantic and Pacific coast of North America. 2nd ed., 663 pp., New York (Van Nostrand Reinhold). Bergh, R. 1871. Beiträge zur Kenntniss der Mollusken des Sargassomeeres. Verhandlungen der Zoologisch-Botanischen Gesellschaft in Wien 21: 1273-1308. Bouchet, P. 2011. Phylliroe lichtensteinii Eschscholtz, 1825. In: MolluscaBase 2017. http://www.marinespecies.org/ aphia.php?p=taxdetails&id=536862 [accessed through World Register of Marine Species 2017-03-22]. Chun, C. 1889. Bericht über eine nach den Canarischen Inseln im Winter 1887/1888 ausgeführte Reise. Sitzungsberichte der Königlich Preussischen Akademie der Wissenschaften zu Berlin 1889 (2): 519-553. Hernández, F. & Jiménez, S. 1996. Nota sobre la presencia de Phylliroe bucephala (Mollusca, Opistobranchia, Nudibranchia, Phylliroidae) en aguas de la isla de El Hierro (Canarias). Revista Academia Canaria de Ciencias 8 (2-4): 173-181. – – & de Vera, A. 2010. Nudibranquios holoplanctónicos en el Atlántico Noreste (Gastropoda, Nudibranchia, Phylliroidea). Vieraea 38: 133-139. – – , Jiménez, S., Fernández-Álamo, M. A., Tejera, E. & Arbelo, E. 2001. Sobre la presencia de moluscos nudibranquios planctónicos en el archipiélago de Cabo Verde. Revista Academia Canaria de Ciencias 12 (3-4): 49-54. Odhner, N. H. 1931. Beiträge zur Malakozoologie der Kanarischen Inseln. Lamellibranchien, Cephalopoden, Gastropoden. Arkiv För Zoologie 23A: 14. Van der Spoel, S. 1970. The pelagic Mollusca from the “Atlantide” and “Galathea” expeditions collected in the East Atlantic. Atlantide Report II: 99-139. Fig. 1. Cephalopyge trematoides (Chun, 1889) from El Hierro Island (4.2 mm of total length). Photo: Natural Sciences Museum of Tenerife.