Kirkegaardia Blake, 2016

Freitas, Roberta, Ribeiro, Rannyele Passos & Ruta, Christine, 2022, Kirkegaardia Blake, 2016 (Annelida: Cirratulidae) from Southeastern Brazil with description of nine new species, PLoS ONE (e 0265336) 2016 (5), pp. 1-27 : 4

publication ID

https://doi.org/ 10.1371/journal.pone.0265336

DOI

https://doi.org/10.5281/zenodo.14287226

persistent identifier

https://treatment.plazi.org/id/E87587E4-9253-FFE3-FDD6-C0DEFA957BE3

treatment provided by

Felipe

scientific name

Kirkegaardia Blake, 2016
status

 

Genus Kirkegaardia Blake, 2016 View in CoL .

Type species: Monticellina heterochaeta (Laubier 1961) [ 24]

Type locality. Banyuls-sur-Mer ( France).

Diagnosis. Bitentaculate, with very distinct body regions. Prostomium short without annulations. Peristomium usually long and cylindrical, with annulations. Dorsal tentacles located in the final portion of the peristomium. Thoracic parapodia with inflated notopodia forming dorsal sulcus in the thoracic region or thoracic parapodia inflated, leaving the dorsal region as a crest. Parapodia of the non-inflated abdominal region laterally positioned. Posterior segments usually expanded or enlarged. Pre-pygidial abdominal segments wider than long and often expanded. Setae capillaries with distinct smooth (denticulate) edge, often basally expanded.

Remarks. The first species of Kirkegaardia was described as Monticellina heterochaeta Laubier, 1961 [ 24]. In 1966, Laubier assigned the genus Monticellina Laubier, 1961 [ 24] as a junior synonym of Tharyx Webster & Benedict, 1887 [ 26], a genus that was thought to have only capillary setae (Laubier, 1966) [ 33]. However, Monticellina was reestablished by Blake [ 27] for species with capillaries having a distinct serrated (denticulate) edge. Blake [ 27] also determined that Tharyx acutus Webster & Benedict, 1887 [ 26], the type-species, has sub-bidentate hooks, thus redefining the genus Tharyx , and removed species having all serrated capillaries to Monticellina and smooth capillaries to a new genus Aphelochaeta . Later, Blake [ 22] discovered that Monticellina was a junior homonym of the turbellarian genus Monticellina Westblad, 1953 [ 34], and renamed the polychaete genus Kirkegaardia to replace the homonym. Blake [ 22] also described 16 new species, increasing the number of Kirkegaardia species to 38.

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