Nephroneis M.C.Amspoker, 1989

Holotype species: Nephroneis macintirei M.C.Amspoker

Original publication and holotype designation: Amspoker, M.C. (1989). Nephroneis macintirei, gen. et sp. nov., a marine araphid diatom from California, U.S.A. Diatom Research 4(2): 171-172, 11 figs.

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Description: Cells solitary, growing epipsammically. Frustules in broad girdle view rectangular with rounded corners; girdle broader on convex side of valve face than on the concave side. Valves bipolar with bluntly rounded apices, reniform in outline with a broad mantle and weakly convex valve face. No discernible axial area; areolae scattered over valve face, becoming organized into transapical striae on mantle; areolae poroidal with hymenate occlusions. Valve without apical or marginal pore fields, pseudosepta, costae or elevations. Rimoportulae at one or both poles. Cingulum composed of valvocopula, copula and one or 2 pleurae; valvocopula and copulae with a single row of areolae, pleurae with a double row of areolae; distinct ligulae, antiligulae and septa absent. Found growing attached to marine sand grains on Scripps Beach, California, USA.

Information contributed by: M.C. Amspoker. The most recent alteration to this page was made on 2018-06-05 by M.D. Guiry.

Taxonomic status: This name is of an entity that is currently accepted taxonomically.

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Contributors
Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in CD format. These AlgaeBase descriptions are now being continually updated, and each current contributor is identified above. The PSA and AlgaeBase warmly acknowledge the generosity of all past and present contributors and particularly the work of Dr Parker.

Descriptions of chrysophyte genera were subsequently published in J. Kristiansen & H.R. Preisig (eds.). 2001. Encyclopedia of Chrysophyte Genera. Bibliotheca Phycologica 110: 1-260.

Linking to this page: https://www.algaebase.org/search/genus/detail/?genus_id=45893

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 05 June 2018. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 24 April 2024