Banquisia Paddock, 1988: 79
Classification:
Empire Eukaryota
Kingdom Chromista
Phylum Ochrophyta
Class Bacillariophyceae
Subclass Bacillariophycidae
Superorder Bacillarianae
Order Naviculales
Family Plagiotropidaceae
Holotype species: Banquisia belgicae (Van Heurck) Paddock
Taxonomic status: currently recognized as a distinct genus.
Description: Valves laminar, highly vaulted with flattened faces; areolae with longitudinally aligned slit-like foramina arranged into transverse striae. Raphe without fibulae, ridged; raphe ridge in girdle view with a distinct bow-like outline, clearly depressed at the central nodule and ca. two-thirds the distance from either pole. A pair of raphe fins occur at or near the subpolar depressions; these fins are proximate but not opposite on each side of the raphe fissure. Raphe fins are not present at the central nodule although a longitudinal crescentic thickening, accentuation of the median interstriae and the absence of puncta contribute to form a small central area. Large helictoglossae occur internally at each pole; terminal raphe pores large, rounded. Terminal micropyles absent from valve poles. Subantarctic, marine. Recorded from "coloured" ice at ca. 65%S, 64% W and Signy Island, South Orkney (ca. 61% S, 46% W).
Comments: Scott & Thomas (2005: 148) record this genus as a member of the Family Naviculaceae.
Numbers of names and species: There is only one species or infraspecific name in the database at present, which has been flagged as currently accepted taxonomically.
Names: ('C' indicates a name that is currently accepted taxonomically; 'S' a homotypic or heterotypic synonym; 'U' indicates a name of uncertain taxonomic status, but which has been subjected to some verification nomenclaturally; 'P' indicates a preliminary AlgaeBase entry that has not been subjected to any kind of verification. For more information on a species click on it to activate a link to the Species database):
Banquisia belgicae (Van Heurck) Paddock C - type
References
Scott, F.J. & Thomas, D.P. (2005). Diatoms. In: Antarctic marine protists. (Scott, F.J. & Marchant, H.J. Eds), pp. 13-201. Canberra & Hobart: Australian Biological Resources Study; Australian Antarctic Division.
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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera,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: http://www.algaebase.org/search/genus/detail/?genus_id=45167
Citing AlgaeBase
Cite this record as:
Guiry, M.D. & Guiry, G.M. 2013. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 24 May 2013.
Algaebase taxon LSID: urn:lsid:algaebase.org:taxname:77771
