Molecular and morphological diversity of monothalamous foraminifera from South Georgia and the Falkland Islands: Description of four new species

被引:17
作者
Holzmann, Maria [1 ]
Gooday, Andrew J. [2 ,3 ]
Majewski, Wojciech [4 ]
Pawlowski, Jan [5 ,6 ]
机构
[1] Univ Geneva, Dept Genet & Evolut, Quai Ernest Ansermet 30, CH-1211 Geneva 4, Switzerland
[2] Natl Oceanog Ctr, European Way, Southampton SO14 3ZH, England
[3] Nat Hist Museum, Life Sci Dept, Cromwell Rd, London SW7 5BD, England
[4] Polish Acad Sci, Inst Paleobiol, Twarda 51-55, PL-00818 Warsaw, Poland
[5] Polish Acad Sci, Inst Oceanol, Powsta Cow Warszawy 55, PL-81712 Sopot, Poland
[6] ID Gene Ecodiagnost, Chemin Pont Centenaire 109, CH-1228 Plan Les Ouates, Switzerland
基金
瑞士国家科学基金会;
关键词
Foraminifera; Monothalamids; Biodiversity; DNA barcoding; SSU rDNA sequences; Sub-Antarctic; Marine coastal fjords; AGGLUTINATED FORAMINIFER; ALLOGROMIID FORAMINIFERA; EXPLORERS-COVE; SP-NOV; ADMIRALTY BAY; WATER; SEA; TAXONOMY; CRIBROTHALAMMINA; ANTARCTICA;
D O I
10.1016/j.ejop.2022.125909
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Based on molecular and morphological data, we describe three new genera and four new species of monothalamids from the sublittoral zone (21-250 m) in South Georgia fjords that belong to different monothalamid clades. Limaxia alba gen. nov. sp. nov. (Clade A) has an elongate, subcylindrical test, 359-688 mu m long, with some detritus attached to the organic wall. Hilla argentea gen. nov. sp. nov. (Clade Y) has a cylindrical, finely agglutinated test, 535-755 mu m long. Pseudoconqueria lenticularis gen. nov. sp. nov. branches separately. It has a spindle-shaped, finely agglutinated test, 280-574 mu m long. Bathyallogromia olivacea sp. nov. (Clade C) has an ovate organic-walled test, 369-433 mu m long. We present the first genetic data on two monothalamid species originally described from South Georgia, Hippocrepinella alba (Clade C) and Hippocrepinella hirudinea (Clade D), as well as a single sequence for C. delacai (Clade J) originally described from McMurdo Sound, Antarctica. In addition, we report nine undescribed species branching in six different monothalamid clades (A, B, BM, C, J, Y), eight of them sampled around South Georgia and one collected from the Falkland Islands near Stanley. (C) 2022 The Author(s). Published by Elsevier GmbH.
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页数:26
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