Stomatochone Pascher, 1942

Holotype species: Stomatochone infundibuliformis Pascher

Original publication and holotype designation: Pascher, A. (1942). Zur Klärung einiger gerfärbter und farbloser Flagellaten und ihrer Einrichtung zur Aufnahahme animalischer Nahrung. Archiv für Protistenkunde 96: 75-108.

Description: Cells colorless, solitary, attached to the substratum by a short pseudopodial stalk. Protoplast metabolic, more or less obconical, at the anterior end obliquely truncate and with a large pseudopodial extension and a funnel-shaped plasmic collar surrounding the flagella. The type species has 2 unequal flagella, the 3 other species have been described to possess a single flagellum only. Contractile vacuoles anteriorly or posteriorly, one species with an inconspicuous anterior stigma. Occasionally cells become detached from the substratum and swim away. Free-swimming cells resemble species of Spumella (Monas), possessing a shorter pseudopodial extension and a contracted and less distinct collar at the anterior end. Nutrition is by ingestion of solid food particles at the base of the funnel-shaped collar. Cells sometimes distorted by intake of very large particles. Reproduction and stomatocysts not observed. Rarely observed in freshwaters of central Europe, normally attached to other plankton organisms. This genus is insufficiently known that its taxonomic position is uncertain. Bourrelly (1981) suggests that Stomatochone is a colorless counterpart of Ochrostylon, but the cell organization also resembles that of Histiona, a genus of colorless flagellates apparently not related to Chrysophyceae (O'Kelly 1993).

Information contributed by: H.R. Preisig. The most recent alteration to this page was made on 2023-12-11 by E.A. Molinari Novoa.

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: Kristiansen, J. & Preisig, H.R. (2001). Encyclopedia of Chrysophyte genera. Bibliotheca Phycologica 110: 1-260.

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=44831

Citing AlgaeBase
Cite this record as:
E.A. Molinari Novoa in Guiry, M.D. & Guiry, G.M. 11 December 2023. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 19 May 2024