Journal of the Marine Biological Association of the United Kingdom

Mediterranean hexactinellid sponges, with the description of a new Sympagella species (Porifera, Hexactinellida)

Nicole Boury-Esnaulta1 c1, Jean Vaceleta1, Henry M. Reiswiga2, Maïa Fourta1, Ricardo Aguilara3 and Pierre Chevaldonnéa1

a1 Institut Méditerranéen de Biodiversité et d'Ecologie Marine et Continentale (IMBE), UMR 7263 CNRS, IRD, Aix Marseille Université, Avignon Université, Station Marine d'Endoume, Rue Batterie des Lions, Marseille 13007, France

a2 Department of Biology, University of Victoria and Natural History Section, Royal British Columbia Museum, Victoria, British Columbia V8W 3N5, Canada

a3 OCEANA. C/Leganitos, 47 28013, Madrid, Spain

Abstract

An overview is proposed of the hexactinellid sponge fauna of the Mediterranean Sea, including the description of a new species of Sympagella, S. delauzei sp. nov., collected by ROV during the exploration of deep-sea canyons of the NW Mediterranean and of deep banks and seamounts of the Alboran Sea. The type species of Sympagella, S. nux, is redescribed from specimens from the type locality. An 18S rDNA sequence of the new species was obtained and included in a phylogenetic tree of related hexactinellids. Some modifications to the classification of Rossellidae are proposed according to the new morphological and molecular data obtained during this study: the genera Caulophacus, and Caulophacella are accordingly moved from Rossellinae to Lanuginellinae.

(Received October 17 2014)

(Accepted November 16 2014)

(Online publication December 29 2014)

Keywords

  • Porifera;
  • glass sponges;
  • deep Mediterranean;
  • new species;
  • integrative taxonomy;
  • 18S rDNA;
  • Sympagella

Correspondence

c1 Correspondence should be addressed to: N. Boury-Esnault, Institut Méditerranéen de Biodiversité et d'Ecologie Marine et Continentale (IMBE), UMR 7263 CNRS, IRD, Aix Marseille Université, Avignon Université, Station Marine d'Endoume, Rue Batterie des Lions, Marseille 13007, France email: nicole.boury-esnault@orange.fr