Xenophyophores (Rhizaria, Foraminifera), including four new species and two new genera, from the western Clarion-Clipperton Zone (abyssal equatorial Pacific)

被引：20

作者：

Gooday, Andrew J. ^{[1
,2
]}

Durden, Jennifer M. ^{[1
,3
]}

Holzmann, Maria ^{[4
]}

Pawlowski, Jan ^{[4
,5
,6
]}

Smith, Craig R. ^{[3
]}

机构：

[1] Natl Oceanog Ctr, European Way, Southampton SO14 3ZH, Hants, England

[2] Nat Hist Museum, Life Sci Dept, Cromwell Rd, London SW7 5BD, England

[3] Univ Hawaii Manoa, Dept Oceanog, Sch Ocean & Earth Sci & Technol, 1000 Pope Rd, Honolulu, HI 96822 USA

[4] Univ Geneva, Dept Genet & Evolut, Quai Ernest Ansermet 30, CH-1211 Geneva 4, Switzerland

[5] Polish Acad Sci, Inst Oceanol, PL-81712 Sopot, Poland

[6] ID Gene Ecodiagnost, Campus Biotech Innovat Pk, CH-1202 Geneva, Switzerland

来源：

EUROPEAN JOURNAL OF PROTISTOLOGY | 2020年 / 75卷

基金：

瑞士国家科学基金会; 英国自然环境研究理事会;

关键词：

Areas of Particular Environmental Interest; Biogeography; Foraminifera; Megafauna; Polymetallic nodules; Seabed mining; PROTISTA; SYRINGAMMINA; RHIZOPODA; TAXONOMY; ECOLOGY; BATHYAL; AREA; SEA;

D O I：

10.1016/j.ejop.2020.125715

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

The Clarion-Clipperton Zone (CCZ) occupies a vast swathe of the Pacific with extensive polymetallic nodule deposits. Eastern and central parts host diverse assemblages of xenophyophores (megafaunal agglutinated foraminifera). Here we describe xenophyophores obtained using a Remotely Operated Vehicle from the western CCZ. Eleven distinct forms include two known species, Stannophyllum zonarium Haeckel, 1888 and Aschemonella monile Gooday and Holzmann in Gooday et al., 2017b. Another four are described as new species based on morphological and genetic data. In Abyssalia foliformis gen. nov., sp. nov. and Abyssalia sphaerica sp. nov. the flattened or spherical test comprises a homogeneous framework of sponge spicules. Psammina tenuis sp. nov. has a delicate, thin, plate-like test. Moanammina semicircularis gen. nov., sp. nov. has a stalked, fanshaped test and is genetically identical to 'Galatheammina sp. 6' of Gooday and co-workers from the eastern CCZ. Sequence data revealed a spherical 'mudball', which disintegrated and cannot be formally described, to be a novel xenophyophore. Finally, four morphospecies are represented by dead tests: Psammina spp., Reticulammina sp., and an unknown genus with a unique test structure. This collection enhances our knowledge of Pacific xenophyophore diversity and provides the first genetic confirmation of wide geographic ranges for abyssal species. (C) 2020 The Author(s). Published by Elsevier GmbH.

引用

页数：28

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