Prosoaulax Calado & Moestrup, 2005

Holotype species: Prosoaulax lacustris (F.Stein) Calado & Moestrup

Original publication and holotype designation: Calado, A.J. & Moestrup, Ø. (2005). On the freshwater dinoflagelllates presently included in the genus Amphidinium, with a description of Prosoaulax gen. nov. Phycologia 44: 112-119.

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Description: Athecate dinoflagellates with the epicone much smaller than the hypocone (usually less than one third); cells little flattened dorsoventrally or not at all, usually as long as or little longer than broad; cingulum circular, with both ends at the same level; eyespot, if present, composed of several layers of flat vesicles containing brick-like particles, underlying the longitudinal microtubular root; peduncle microtubular strand present, capable of extending into a peduncle on the ventral side of the epicone, which is at times involved in food uptake; amphiesma composed of a few hundreds of mostly polygonal amphiesmal vesicles, but a linear, elongate vesicle present in the apical area; pusule a long, convoluted, tube-like structure.

Information contributed by: Original description and Moestrup & Calado (2018).. The most recent alteration to this page was made on 2018-10-25 by M.D. Guiry.

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

Most recent taxonomic treatment adopted: Moestrup, Ø. & Calado, A.J. (2018). Süßwasserflora von Mitteleuropa. Dinophyceae. Vol. 6 pp. [i]-xii, [1]-560, 421 figures. Berlin: Springer Spektrum.

Comments: Greek prefix proso-, to the front, and Greek aulax, furrow; referring to the anterior location of the transverse furrow. Species of this genus were previously included in Amphidinium, a genus that does not typically occur in fresh water. See Flø Jørgensen et al. (2004) for recircumscription of Amphidinium.

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=50641

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 25 October 2018. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 22 November 2024