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CaRMS source details
Paxton, Hannelore; Budaeva, Nataliya; Gunton, Laetitia M. (2023). Amazing diversity of Nothria (Annelida, Onuphidae) in the Australian deep sea. Records of the Australian Museum. 75(3): 215-247.
451005
10.3853/j.2201-4349.75.2023.1802 [view]
Paxton, Hannelore; Budaeva, Nataliya; Gunton, Laetitia M.
2023
Amazing diversity of Nothria (Annelida, Onuphidae) in the Australian deep sea
Records of the Australian Museum
75(3): 215-247
Publication
World Polychaeta Database (WPolyD).
Available for editors
The epibenthic onuphid genus Nothria Malmgren, 1867 presently comprises 21 accepted species. We are reporting here on specimens collected during six deep-sea expeditions of the RV Investigator from 2015–2018 to the Great Australian Bight (GAB) and off eastern Australia from Tasmania to Queensland, describing eight new species of Nothria. This is the first integrated study of the genus, sequencing the markers COI, 16S rDNA and 28S rDNA from 37 specimens and employing conventional and exploratory morphological characters as well as tube consistency and structure for identification. Molecular data provided strong support for recognition of the eight new species and the Nothria otsuchiensis Imajima, 1986 species complex. Since the analysis of morphology between the specimens of this complex has not revealed any obvious differences, it may represent a complex of cryptic species. Nothria digitata sp. nov. was collected at a depth of 400 m whilst the remaining seven new species are from depths of 980–2751 m. Nothria deltasigma sp. nov., N. digitata sp. nov. and N. minima sp. nov. were collected at a single station each, while N. josae sp. nov. and N. simplex sp. nov. were found at two stations. However, N. delta sp. nov. displayed the widest distribution, occurring at GAB, Tasmania and Jervis Bay Marine Park, NSW. Most stations yielded only one species, Jervis Bay Marine Park and south of Brians, Tasmania, harboured two, but an astounding example of sympatry was discovered at Huon Marine Park, Tasmania, where three species, N. delta sp. nov., N. lizae sp. nov. and N. orensanzi sp. nov. were collected together in one station.
Australia
Abyssal, Deep-Sea
Molecular systematics, Molecular biology Systematics, Taxonomy Date action by
Nothria Malmgren, 1867 (taxonomy source)
Etymology The specific epithet refers to the manuscript name “D” of the new species in the Greek language. [details] Etymology The specific epithet refers to the manuscript name “Ds” of the new species, referring to its great similarity ... [details] Etymology The name of the new species is suggested by its long, digitate branchiae [details] Etymology The species is named for Josie Paxton, granddaughter of the first author [details] Etymology The species is named for Liza Paxton, granddaughter of the first author. [details] Etymology The epithet “minima”, meaning “small” in Latin given to the smallest, most delicate species encountered in ... [details] Etymology The species is named for the late José M. Orensanz in recognition of his valuable contributions to the study of ... [details] Etymology The name of the new species is suggested by having almost only simple hooded hooks on the anterior modified parapodia [details] Type locality Pacific Ocean, Australia, off southern Tasmania, Huon Marine Park; 44.3°S 147.36°E; 2010 m depth [details] Type locality Pacific Ocean, Australia, Tasmania, flat area south of Brians, 44.24–44.23°S 147.29–147.30°E; 1422–1443 m depth [details] Type locality Australia, Southern Ocean, Great Australian Bight, 34.25–34.24°S 132.62°E; 400 m depth [details] Type locality Australia, New South Wales, Byron Bay, 28.05–28.10°S 154.08°E; 999–1013 m depth [details] Type locality Australia, Tasmania, Huon Marine Park, 44.32°S 147.32–147.31°E; 2010 m depth [details] Type locality Australia, Tasmania, St. Helen’s flat; 41.21–41.20°S 148.80–148.78°E; 1221–1202 m depth [details] Type locality Australia, Tasmania, Huon Marine Park; 44.33°S 147.36°E; 2010 m depth [details] Type locality Australia, Queensland, off Fraser Island; 25.33–25.35°S 154.07–154.08°E; 2350–2342 m depth [details] |