Marine Biodiversity

, Volume 47, Issue 4, pp 1123–1129 | Cite as

Haplosyllis (Annelida: Syllidae) from Saudi Arabian Red Sea, with the description of a new endosymbiotic species and a dichotomous key for the Indo-Pacific species

  • Diego Cepeda
  • Daniel Martin
  • Temir A. Britayev
  • Ali M. Al-Aidaroos
  • Patricia Lattig
Red Sea Biodiversity


Knowledge of the Haplosyllis species in the Saudi Arabian Red Sea is rather limited, since the so-called cosmopolitan Haplosyllis spongicola and Haplosyllis djiboutiensis apparently present all along the region are the only reported species. However, both are revealed to be species-complexes, the former mostly composed of European species and the later distributed in the Indo-Pacific area. Recently, several new species have been described following more comprehensive taxonomic studies in the respective areas. Haplosyllis leylae sp. nov. can be framed within the “djiboutiensis” complex. The new species, which is herein fully described and illustrated, can be clearly distinguished by the combined presence of numerous small dorsal granules, the low number of articles on each dorsal cirrus, and the chaetal morphology. A dichotomous key of the Indo-Pacific species of Haplosyllis and new information on Haplosyllis eldagainoae are also included.


Polychaeta Haplosyllis Red Sea New species Taxonomy Dichotomous key 



The author Patricia Lattig holds a post-doctoral contract under the JAE-DOC program of the Consejo Superior de Investigaciones Científicas in the Museo Nacional de Ciencias Naturales of Madrid (MNCN-CSIC). This paper has been partially supported by the projects CTM2014-57949-R funded by the Spanish Ministry of Economy and Competitiveness, and the projects CTM2010-22218 and CTM2013-43287-P funded by the Spanish State Research Plan, and the Consolidated Research Group of Marine Benthic Ecology of the Generalitat de Catalunya (2014SGR120). The scientific research cooperation between King Abdulaziz University (KAU), Faculty of Marine Sciences (FMS), Jeddah, Saudi Arabia, and the Senckenberg Research Institute (SRI), Frankfurt, Germany, in the framework of the Red Sea Biodiversity Project, during which the present material was collected, was funded by KAU GRANT NO. I/1/432-DSR. The authors acknowledge, with thanks, KAU and SRI for technical and financial support.


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Copyright information

© Senckenberg Gesellschaft für Naturforschung and Springer-Verlag Berlin Heidelberg 2017

Authors and Affiliations

  1. 1.Department of Biodiversity and Evolutionary BiologyNational Museum of Natural Sciences of Madrid (MNCN)MadridSpain
  2. 2.Department of Marine EcologyCentre for Advanced Studies of Blanes (CEAB)BlanesSpain
  3. 3.A.N. Severtsov Institute of Ecology and Evolution (RAS)Russian Academy of SciencesMoscowRussia
  4. 4.Department Of Marine Biology, Faculty of Marine SciencesKing Abdulaziz UniversityJeddahSaudi Arabia

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