Pseudachnanthidium Riaux-Gobin, 2015

Holotype species: Pseudachnanthidium megapteropsis Riaux-Gobin & Witkowski

Original publication and holotype designation: Riaux-Gobin, C. & Witkowski, A. (2015). Pseudachnanthidium megapteropsis gen. nov. and sp. nov. (Bacillariophyta): a widespread Indo-Pacific elusive taxon. Cryptogamie Algologie 36(3): 291-304.

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Description: Rectangular in cingular view. Dense striation on both valves. sternum valve (SV) flat. Striae composed of narrow macro-areolae closed by hymenes under the valve face. Virgae strongly raised. SV Sternum with a vestigial raphe. SV valvocopula (SVVC) open and lacking fimbriae. Raphe valve (RV) striae uniseriate composed of minute and dense areolae. Short mantle void of areolae. Terminal raphe endings close to the margin, externally simply hooked on the same side; central raphe endings well apart, externally slightly bent on the primary side. Cingulum complex, high, composed of numerous narrow open bands without foramina.

Information contributed by: Original description.. The most recent alteration to this page was made on 2022-03-24 by M.D. Guiry.

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

Most recent taxonomic treatment adopted: Riaux-Gobin, C. & Witkowski, A. (2015). Pseudachnanthidium megapteropsis gen. nov. and sp. nov. (Bacillariophyta): a widespread Indo-Pacific elusive taxon. Cryptogamie Algologie 36(3): 291-304.

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=51883

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 24 March 2022. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 25 April 2024