Belongs within: Dinophysiales. Dinophysis is a genus of laterally compressed dinoflagellates bearing conspicuous cingular and sulcal lists (Steidinger & Williams 1970). Characters (Steidinger & Williams 1970): Armoured, laterally compressed cells with conspicuous cingular lists. Anterior cingular list broadly funnel-shaped, extending beyond epitheca which is relatively short, at times barely detectable. Hypotheca usually exceeding epitheca by at least six… Continue reading Dinophysis
Category: Myzozoa
Oxytoxum
Belongs within: Peridinoidia. Oxytoxum is a genus of dinoflagellates with an elongate, spindle- to top-shaped habitus (Steidinger & Williams 1970). Oxytoxum flowing Published 28 January 2023 The dinoflagellates are perhaps one of the better studied groups of microbial eukaryotes but there are still many subgroups of dinoflagellates that remain poorly known. One such subgroup is the… Continue reading Oxytoxum
Histioneis
Belongs within: Dinophysiales. Histioneis is a genus of heterotrophic dinoflagellates with the cingular chamber modified to house diazotrophic cyanobacteria. Histioneis Stein 1883 [incl. Parahistioneis Kofoid & Skogsberg 1928]FT93 |–‘Parahistioneis’ acutaS73 |–‘Parahistioneis’ acutiformis Rampi 1947S73 |–H. aequatorialis Wood 1963S73 |–H. alata Rampi 1947S73 |–H. australiae Wood 1963S73 |–H. bernhardii Rampi 1969S73 |–H. biremisSW70 |–H. bougainvillae Wood 1963S73 |–H.… Continue reading Histioneis
Goniodomaceae
Belongs within: Peridiniphycidae. The Goniodomaceae are a group of dinoflagellates in which the tabulation ancestrally has two or three fundital plates (Fensome et al. 1993). Characters (Fensome et al. 1993, as Goniodomineae): Tabulation according with, or derived from, a pattern of two or three fundital plates, always including posterior intercalary (X) and first antapical (Y) homologues, sometimes including posterior sulcal homologue… Continue reading Goniodomaceae
Adeleorina
Belongs within: Sporozoa. Sequences of syzygy Published 2 May 2025 The study of the Sporozoa, that major assemblage of parasitic protozoans, has unsurprisingly tended to focus on the species that infect vertebrates. However, even those representatives that fulfil this requirement have not all received equal attention. One group that has perhaps been neglected is the Adeleorina.… Continue reading Adeleorina