A new genus and species of Sternaspidae (Annelida: Polychaeta) from the deep eastern Atlantic

Autor: Dieter Fiege, Ruth Barnich
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: European Journal of Taxonomy, Iss 699 (2020)
Druh dokumentu: article
ISSN: 2118-9773
DOI: 10.5852/ejt.2020.699
Popis: Based on specimens recently collected in sediments from 2700 m depth off Mauritania (Northwest Africa; type locality) and from 2700–4400 m depth off Angola (Southwest Africa), a new genus and species, Mauretanaspis longichaeta gen. et spec. nov., is described. The new genus and species are characterized by a unique combination of characters: ventro-caudal shield covered by firmly adhering sediment, lateral margins strongly bent and merging into integument; introvert hooks tapering; eight pre-shield segments; absence of peg chaetae; exceptionally long posteriormost lateral chaetae equaling body length; posterior shield chaetae equaling shield length. A comparative table of characters for all currently recognised sternaspid genera and a key to all species with ventro-caudal shield covered by firmly adhering sediment are provided.
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