Description of a new genus and species of Chrysopetalidae (Annelida: Polychaeta) from the NE Atlantic, with some further records of related species

  • Ascensão Ravara Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro
  • M. Teresa Aguado Centro de Investigacíon en Biodiversidad y Cambio Global (CIBC-UAM), Departamento de Biologia, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid
  • Clara F. Rodrigues Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro
  • Luciana Génio Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro
  • Marina R. Cunha Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro
DOI: https://doi.org/10.5852/ejt.2019.539
Keywords: deep-sea, Bay of Biscay, Horseshoe Abyssal Plain, Gulf of Cadiz, symbiotic species

Abstract

Five chrysopetalid species are reported from samples collected at bathyal depths in three NE Atlantic regions: the Bay of Biscay, the Horseshoe Abyssal Plain and the Gulf of Cadiz. Arichlidon reyssi (Katzmann et al., 1974), Dysponetus caecus (Langerhans, 1880) and D. profundus Böggemann, 2009 are free-living forms found mainly on biogenic substrates (e.g., coral and sunken wood). A brief description and taxonomical remarks are given for each of these species and their geographical distributions and habitat records were updated accordingly. Natsushima bifurcata Miura & Laubier, 1990 and Craseoschema thyasiricola gen. et sp. nov. are symbionts inhabiting the mantle cavity of chemosynthesis-based bivalves known from four mud volcanoes from the Gulf of Cadiz. Craseoschema thyasiricola gen. et sp. nov. was found inside a thyasirid bivalve and presents mixed morphological characteristics of free-living and symbiotic forms within Calamyzinae Hartmann-Schröder, 1971. A full description of the new species is given together with DNA sequences of the genes COI, 16S and H3 that were used in a phylogenetic analysis to indicate the position of the new genus within the family.

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Published
2019-07-26
How to Cite
Ravara, A., Aguado, M. T., Rodrigues, C. F., Génio, L., & Cunha, M. R. (2019). Description of a new genus and species of Chrysopetalidae (Annelida: Polychaeta) from the NE Atlantic, with some further records of related species. European Journal of Taxonomy, (539). https://doi.org/10.5852/ejt.2019.539
Issue
No. 539 (2019): Description of a new genus and species of Chrysopetalidae (Annelida: Polychaeta) from the NE Atlantic, with some further records of related species
Section
Zoology

Copyright (c) 2019 Ascensão Ravara, M. Teresa Aguado, Clara F. Rodrigues, Luciana Génio, Marina R. Cunha

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