Pteridomonas E.Penard, 1889

Holotype species: Pteridomonas pulex Penard

Original publication and holotype designation: Penard, E. (1889). Einige Bemerkungen über die in der Umgegend von Wiesbaden verkommenden Protozoën. Jahrbücher des Nassauischen Vereins für Naturkunde 42: 141-146.

Description: Cell colorless, rounded to pyriform, with an apical depression from the center of which the single flagellum protrudes. In apical view, outline is +/- hexagonal. Flagellum with two rows of tubular (tripartite) hairs, and minute scales. Paraxial rod present, but less prominent than in many other pedinellids. A wreath of about 12 stiff pseudopodia each supported by a triad of microtubuli, is surrounding the proximal part of the flagellum; they may be withdrawn. A posterior stalk attaches the cell to the substrate, but the cells may detach and the stalk retracted. The attached cell bears only a single (apical) ring of stiff pseudopodial arms. Nutrition heterotrophic. Divison of the cells may result in simple ramified "colonies"; sexual reproduction not observed. Found in freshwater and marine plankton or attached by a stalk; not uncommon; Atlantic, Pacific.

Information contributed by: J.Throndsen. The most recent alteration to this page was made on 2021-10-08 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.

Most recent taxonomic treatment adopted: Kawai, H. & Nakayama, T. (2015). Introduction (Heterokontobionta p.p.), Cryptophyta, Dinophyta, Haptophyta, Heterokontophyta (except Coscinodiscophyceae, Mediophyceae, Fragilariophyceae, Bacillariophyceae, Phaeophyceae, Eustigmatophyceae), Chlorarachniophyta, Euglenophyta. In: Syllabus of plant families. Adolf Engler's Syllabus der Pflanzenfamilien. Ed. 13. Phototrophic eukaryotic Algae. Glaucocystophyta, Cryptophyta, Dinophyta/Dinozoa, Haptophyta, Heterokontophyta/Ochrophyta, Chlorarachnniophyta/Cercozoa, Chlorophyta, Streptophyta p.p. (Frey, W. Eds), pp. 11-64, 103-139. Stuttgart: Borntraeger Science Publishers.

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=44811

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 08 October 2021. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 26 April 2024