World Register of Deep-Sea species

Deep-Sea source details

Name

Freitas, Roberta; Ribeiro, Rannyele Passos; Ruta, Christine. (2022). Kirkegaardia Blake, 2016 (Annelida: Cirratulidae) from Southeastern Brazil with description of nine new species. PLOS ONE. 17(5): e0265336, 1-27.

SourceID

428512

DOI

10.1371/journal.pone.0265336 [view]

Authors

Freitas, Roberta; Ribeiro, Rannyele Passos; Ruta, Christine

Year

2022

Title

Kirkegaardia Blake, 2016 (Annelida: Cirratulidae) from Southeastern Brazil with description of nine new species

Journal

PLOS ONE

Suffix

17(5): e0265336, 1-27

Type

Publication

Link

https://journals.plos.org/plosone/article/citation?id=10.1371/journal.pone.0265336

Note

World Polychaeta Database (WPolyD).

Full text

Available for editors

Abstract

This is the first taxonomic study of cirratulid polychaetes of the genus Kirkegaardia Blake, 2016 from Brazil. Nine new species of the genus are described from the Southern Brazilian coast (50–3000 m deep). The genus Kirkegaardia is generally subdivided into three distinct groups of species (Kirkegaardia dorsobranchialis-heterochaeta, Kirkegaardia baptisteae-tesselata and Kirkegaardia luticastella) and several out-group species for which relationships remains to be defined. In this study, new species were included in the Kirkegaardia dorsobranchialis-heterochaeta and Kirkegaardia baptisteae-tesselata groups. Kirkegaardia dorsobranchialis-heterochaeta is characterized by thoracic parapodia elevated producing a channel between the notopodia, elongate pre-setigerous region that is either entirely smooth or modified with a dorsal ridge and/or rings, and noto- and neurosetae capillaries denticulated. As belonging to this group, K. blakei sp. nov., K. brisae sp. nov., K. goytaca sp. nov., K. jongo sp. nov. and K. papaveroi sp. nov. are described here. Kirkegaardia baptisteae-tesselata includes species that lack thoracic parapodia elevated and mid-dorsal thoracic groove, although a dorsal ridge is sometimes developed. In the pre-setigerous region dorsal ridges and rings are present or absent. Most species in this group have neurosetae denticulated, and notosetae capillaries of other types. This study adds K. helenae sp. nov., K. medusa sp. nov., K. nupem sp. nov. and K. zafirae sp. nov. to the latter species group. In addition, two new records are provided for K. hampsoni. A key to cirratulid polychaete species reported from Brazilian waters is provided.

Geographical term

Brazil

Bibliographical term

Systematics, Taxonomy

Taxonomic terms

Annelida
Polychaeta

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Date

action

2022-05-16 22:27:13Z

created

Read, Geoffrey

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Kirkegaardia Blake, 2016 (taxonomy source)
Kirkegaardia jongo Freitas, Ribeiro & Ruta, 2022 (original description)
Kirkegaardia nupem Freitas, Ribeiro & Ruta, 2022 (original description)

Holotype MNRJ MNRJP-002997, geounit Campos Basin, identified as Kirkegaardia jongo Freitas, Ribeiro & Ruta, 2022
Holotype MNRJ MNRJP-003003, geounit Campos Basin, identified as Kirkegaardia nupem Freitas, Ribeiro & Ruta, 2022

Depth range

for Kirkegaardia blakei Freitas, Ribeiro & Ruta, 2022

32-683 m. [details]

Depth range

for Kirkegaardia brisae Freitas, Ribeiro & Ruta, 2022

14-352 m. [details]

Depth range

for Kirkegaardia goytaca Freitas, Ribeiro & Ruta, 2022

21-43 m. [details]

Depth range

for Kirkegaardia helenae Freitas, Ribeiro & Ruta, 2022

14-349 m. [details]

Depth range

for Kirkegaardia jongo Freitas, Ribeiro & Ruta, 2022

352-1288 m. [details]

Depth range

for Kirkegaardia medusa Freitas, Ribeiro & Ruta, 2022

41-352 m. [details]

Depth range

for Kirkegaardia nupem Freitas, Ribeiro & Ruta, 2022

43-1010 m. [details]

Depth range

for Kirkegaardia papaveroi Freitas, Ribeiro & Ruta, 2022

14-145 m. [details]

Depth range

for Kirkegaardia zafirae Freitas, Ribeiro & Ruta, 2022

26-43 m. [details]

Distribution

for Kirkegaardia blakei Freitas, Ribeiro & Ruta, 2022