Describing the hidden species diversity of Chaetozone (Annelida, Cirratulidae) in the Norwegian Sea using morphological and molecular diagnostics

Using molecular markers and species delimitation analyses, a high diversity of bi-tentaculate Cirratulidae was discovered from the North-East Atlantic. Five new species are described: Chaetozone pseudosetosa sp. nov., Chaetozone quinta sp. nov., Chaetozone barentsensis sp. nov., Chaetozone monteverd...

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Bibliographic Details
Published in:ZooKeys
Main Authors: Grosse,Maël, Capa,Maria, Bakken,Torkild
Format: Article in Journal/Newspaper
Language:English
Published: Pensoft Publishers 2021
Subjects:
Continental shelf
cryptic species
integrative taxonomy
new species
North-East Atlantic
Norway
polychaetes
Norwegian Sea
North East Atlantic
Online Access:https://doi.org/10.3897/zookeys.1039.61098
https://zookeys.pensoft.net/article/61098/
Description
Summary:Using molecular markers and species delimitation analyses, a high diversity of bi-tentaculate Cirratulidae was discovered from the North-East Atlantic. Five new species are described: Chaetozone pseudosetosa sp. nov., Chaetozone quinta sp. nov., Chaetozone barentsensis sp. nov., Chaetozone monteverdii sp. nov., and Chaetozone chambersae sp. nov. Several morphogroups are also described, even though the presence of cryptic diversity prevented naming of individual species. For each species presented, a molecular diagnostic is given from the universal barcode COI and, when available, the D1–D2 domains of the 28S rRNA. This increases the number of species in Chaetozone in northern European waters from ten to at least 17 species, the exact number of species remaining uncertain as taxonomic issues with older names remain unresolved.

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