Four new genera of the Ceratonotus group (Copepoda, Harpacticoida), including the description of two new species
Open Access
- 5 October 2021
- journal article
- research article
- Published by Museum National D'Histoire Naturelle in European Journal of Taxonomy
- Vol. 774, 1-41
- https://doi.org/10.5852/ejt.2021.774.1525
Abstract
In the framework of an ongoing extensive phylogenetic evaluation of the Ceratonotus group (Copepoda, Harpacticoida, Cletodidae), Poropsyllus menzelae gen. et sp. nov. from the sublittoral of south-western Cyprus (eastern Mediterranean Sea) and Paratouphapleura aaroni gen. et sp. nov. from the western Weddell Sea (Antarctica) are described. Both new species fit the autapomorphies of the Ceratonotus group but cannot be assigned to any of the genera so far known. Instead, each new species presents a set of derived characters that justify their placement in new genera, Poropsyllus gen. nov. and Paratouphapleura gen. nov., respectively. Furthermore, a comparison of the species placed in Ceratonotus Sars revealed that because of exclusive morphological deviations, Ceratonotus concavus Conroy-Dalton, C. steiningeri George, C. tauroides George, and C. vareschii George should be excluded from Ceratonotus and transferred to a new monophylum, Tauroceratus gen. nov. Likewise, Polyascophorus monoceratus George, Wandeness & Santos is characterized by several apomorphies that justify its transfer from Polyascophorus to a new taxon, Pseudopolyascophorus gen. nov. The Ceratonotus group is therefore increased to 31 species assigned to 13 genera. The systematic modifications conducted and resulting phylogenetic consequences are discussed in detail.Keywords
This publication has 14 references indexed in Scilit:
- Restructuring the Ancorabolidae Sars (Copepoda, Harpacticoida) and Cletodidae T. Scott, with a new phylogenetic hypothesis regarding the relationships of the Laophontoidea T. Scott, Ancorabolidae and CletodidaeZoosystematics and Evolution, 2020
- New Ancorabolidae (Copepoda: Harpacticoida) from Korea: two new genera, revisionary notes and updated identification keysZoological Journal of the Linnean Society, 2019
- On some new species of Ancorabolidae Sars, 1909 from the Gulf of California: the genera Ceratonotus Sars, 1909, and Dendropsyllus Conroy-Dalton, 2003 (Crustacea, Copepoda, Harpacticoida)ZooKeys, 2017
- A new species of Ancorabolidae (Crustacea: Copepoda: Harpacticoida) from the Campos Basin, Brazil, including a phylogenetic review of the taxon Polyascophorus George, 1998, and a key to its speciesZoologischer Anzeiger, 2013
- First record of the taxonEchinopsyllus(Copepoda, Harpacticoida, Ancorabolidae) from the deep sea of Campos Basin, Brazil, with the description of three new species and their contribution to phylogenetic analysisZoological Journal of the Linnean Society, 2009
- A new monothalamous foraminiferan from 1000 to 6300m water depth in the Weddell Sea: morphological and molecular characterisationDeep Sea Research Part II: Topical Studies in Oceanography, 2004
- First Records of the Genus Ceratonotus G. O. Sars, 1909 (Copepoda, Ancorabolidae) From the Southern Hemisphere, With the Description of Two New SpeciesCrustaceana, 1998
- The Ubiquitous Telson and the Deceptive FurcaCrustaceana, 1976
- Zvvei neue Harpacticoida (Copepoda) aus dem Westnorwegischen KdstengebietSarsia, 1967
- An improved detritus-sledge for collecting meiobenthosOphelia, 1964