Annulotesta N.Namba & T.Nakayama, 2021

Holotype species: Annulotesta cochleophila Namba & T.Nakayama

Publication details: N.Namba & T.Nakayama, 2021: 86

Original publication and holotype designation: Namba, N. & Nakayama, T. (2021). Taxonomic study of a new green alga, Annulotesta cochlephila gen. et sp. nov. (Kornmanniaceae, Ulvales, Ulvophyceae), growing on the shells of door snails. Journal of Plant Research 134(1): 77-89, 9 figures, 1 table.

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Description: Pseudoparenchymatous alga composed of central rounded and peripheral cylindrical cells on solid media. Cylindrical cells form branching filaments. Vegetative cells have a parietal plate-like chloroplast with a pyrenoid. One to a few ring-like structures were situated on the cell wall of the cells in the central part. The genus differs from similar genera by 18S rDNA sequences.

Origin of description: this description is from the original publication; it may have been modified slightly. The most recent alteration to this page was made on 2025-05-10 by M.D. Guiry.

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

Gender: This genus name is currently treated as feminine.

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=53069

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 10 May 2025. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 01 June 2025