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Issue: Vol. 4496 No. 1: 5 Oct. 2018
Type: Article
Published: 2018-10-04
DOI: 10.11646/zootaxa.4496.1.6
Page range: 65–95
Abstract views: 179
PDF downloaded: 2

Insights into the diversity of Hormogastridae (Annelida, Oligochaeta) with descriptions of six new species

Departamento de Biodiversidad, Ecología y Evolución, Facultad de Biología, Universidad Complutense de Madrid, C/ José Antonio Nováis 2, 28040, Madrid, Spain
Centre for Genomic Regulation, Carrer del Dr. Aiguader, 88, 08003 Barcelona, Spain
Departamento de Biodiversidad, Ecología y Evolución, Facultad de Biología, Universidad Complutense de Madrid, C/ José Antonio Nováis 2, 28040, Madrid, Spain
Departamento de Biodiversidad, Ecología y Evolución, Facultad de Biología, Universidad Complutense de Madrid, C/ José Antonio Nováis 2, 28040, Madrid, Spain
Departamento de Biodiversidad, Ecología y Evolución, Facultad de Biología, Universidad Complutense de Madrid, C/ José Antonio Nováis 2, 28040, Madrid, Spain
Environmental Toxicology and Biology, Departamento de Física Matemática y de Fluídos, Facultad de Ciencias UNED, C/ Senda del Rey 9, 28040 Madrid, Spain
Annelida alpha taxonomy molecular phylogeny morphology species diversity Clitellata

Abstract

The earthworm family Hormogastridae is a relatively diverse group in the Western Mediterranean basin. Since 1887, around thirty species have been described and assigned to four genera. However, from 2010 on, molecular, ecological and morphological studies have questioned the validity of those genera. Meanwhile, new species were discovered and assigned to them, pending a formal systematic revision; such a revision has been performed recently by integrating all the existing sources of information. The resulting classification consists of nine genera, including four newly erected ones. This revised systematic background is used in the current work as a base for the description of six new hormogastrid species: Diazcosinia sacrarium Marchán, Fernández, Díaz Cosín & Novo, sp. nov., Boucheona martae Marchán, Fernández & Díaz Cosín, sp. nov., Boucheona rosae Marchán, Díaz Cosín & Novo, sp. nov., Norana emiliae Marchán, Fernández, Díaz Cosín & Novo, sp. nov., Norana xylocerasi Marchán, Fernández, Díaz Cosín & Novo, sp. nov., and Norana beatrizae Marchán, Fernández, Díaz Cosín & Novo, sp. nov. Norana is a new replacement name for the preoccupied Nora Marchán, Fernández, Díaz Cosín & Novo, 2018. Likewise, Xanina is proposed to replace the preoccupied Xana Díaz Cosín, Briones & Trigo, 1989. We provide an overview of the currently known diversity of the different genera, and we further propose common names in several languages for some of the species of Hormogastridae.

 

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