Revision of Meiodorvillea Jumars, 1974 (Annelida: Dorvilleidae) including descriptions of three new species from the Southwestern Atlantic Ocean

Rafael de Oliveira Bonaldo; Tatiana Menchini Steiner; Antônia Cecília Zacagnini Amaral

doi:10.1371/journal.pone.0264081

Revision of Meiodorvillea Jumars, 1974 (Annelida: Dorvilleidae) including descriptions of three new species from the Southwestern Atlantic Ocean

PLoS One. 2022 Mar 2;17(3):e0264081. doi: 10.1371/journal.pone.0264081. eCollection 2022.

Authors

Rafael de Oliveira Bonaldo^{1

2}, Tatiana Menchini Steiner², Antônia Cecília Zacagnini Amaral^{1

2}

Affiliations

¹ Programa de Pós-Graduação em Biologia Animal, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil.
² Laboratório de Biodiversidade Bêntica Marinha, Departamento de Biologia Animal, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil.

Abstract

Meiodorvillea Jumars, 1974 is a little-known genus of Dorvilleidae Chamberlin, 1919, characterized by its small size and reduced appendages and jaw apparatus. A revision of the genus is presented, including analysis of the type material of M. minuta (Hartman, 1965) and M. apalpata Jumars, 1974, as well as specimens collected from shelf and slope continental areas in Brazil. A neotype was designated for M. minuta and its distribution was extended to Brazil. The identity of M. chilensis (Hartmann-Schröder, 1965) is questioned and three new species from 21 to 1,300.7 meters depth are also described. Meiodorvillea penhae sp. nov. has furcate chaeta only in the first anterior chaetigers. In contrast, Meiodorvillea hartmanae sp. nov. has very small palps and asymmetrical thin furcate chaeta and Meiodorvillea jumarsi sp. nov. has dorsal cirri and geniculate chaeta only in the first anterior chaetigers.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Animals
Annelida*
Atlantic Ocean
Brazil
Polychaeta*

Grants and funding

This study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior – Brasil (CAPES) – Finance Code 001 to ROB https://www.gov.br/capes/pt-br ROB received a MsC. fellowship from FAPESP (Fundação de Amparo à Pesquisa do Estado de São Paulo) (proc. 2018/13244-9) https://fapesp.br/ ROB received a grant from FAEPEX (Fund for Support to Teaching, Research and Outreach Activities) (proc. 2692/19) https://www.prp.unicamp.br/pt-br/faepex ACZA received a productivity grant from CNPq (Conselho Nacional de Desenvolvimento Científico e Tecnológico) (proc. 301551/2019-7) https://www.cnpq.br/ Part of the material from MDBio used for this study is part of a project funded by FAPESP (Fundação de Amparo a Pesquisa do Estado de São Paulo), Programa Biota/FAPESP (proc. 2018/10313-0) https://fapesp.br/ We thank CENPES/PETROBRAS for sampling and providing part of the material analyzed in this study. https://tecnologia.petrobras.com.br/index.html.