Ebriid

The Ebriales (see taxobox for synonyms) is a group of phagotrophic flagellate eukaryotes present in marine coastal plankton communities worldwide. Ebria tripartita is one of two (possibly four) described extant species in the Ebriales. Members of this group are named for their idiosyncratic method of movement (ebrius, "drunk").

Ebriids are usually encountered in low abundance and have a peculiar combination of ultrastructural characters including a large nucleus with permanently condensed chromosomes and an internal skeleton composed of siliceous rods.

The taxonomic history of the group has been tumultuous and has included a variety of affiliations, such as silicoflagellates, dinoflagellates, 'radiolarians' and 'neomonads'. However, molecular phylogenies place them within Cercozoa.

Taxonomy

Order Ebriales

• Family †Ammodochiaceae <small>Deflandre 1950</small> [Ammodochiidae]
• Genus †Ammodochium <small>Hovasse 1932</small> [Tripodium <small>Hovasse 1932</small>]
• Family †Ditripodiaceae <small>Deflandre 1951</small> [Ditripodiidae]
• Genus †Ditripodium <small>Hovasse 1932</small>
• Genus †Parathranium <small>Hovasse 1932</small> [Dicladia <small>Ehrenberg 1845</small>]
• Genus †Thranium <small>Hovasse 1932</small>
• Family Ebriaceae <small>Lemmermann 1901</small> [Ebriidae <small>Poche 1913</small>]
• Genus †Ebrinula <small>Deflandre 1950</small>
• Genus Parebria <small>Hovasse 1932</small>
• Genus Ebria <small>Borgert 1891</small> [†Ebriella <small>Deflandre 1934b</small>; †Parammodochium <small>Deflandre 1932</small>; †Proebria <small>Hovasse 1943</small>]
• Family Hermisinaceae <small>Hovasse 1943</small> [Ebriopsidaceae <small>Deflandre 1650</small>; Hermisinidae; Podamphoraceae <small>Dangeard 1942</small>]
• Genus †Craniopsis <small>Hovasse 1932 ex Frenguelli 1940</small>
• Genus †Ebriopsis <small>Hovasse 1932</small>
• Genus †Falsebria <small>Deflandre 1950</small>
• Genus †Haplohermesinum <small>Hovasse 1943</small>
• Genus †Hermesinella <small>Deflandre 1934</small>
• Genus †Hermesinopsis <small>Deflandre 1934</small>
• Genus †Hovassebria <small>Deflandre 1936</small> [Hovassebria <small>Deflandre 1934 nomen nudum</small>]
• Genus †Micromarsupium <small>Deflandre 1934</small>
• Genus †Parebriopsis <small>Hovasse 1932</small>
• Genus †Podamphora <small>Gemeinhardt 1931</small> [Podium <small>Hovasse 1932</small>]
• Genus †Podamphoropsis <small>Dumitrica 1973</small>
• Genus †Polyebriopsis <small>Hovasse 1932</small>
• Genus †Pseudammodochium <small>Hovasse 1932</small>
• Genus †Pseudomicromarsupium <small>Busen & Wise 1977</small>
• Genus †Semantebria <small>Frenguelli 1940</small>
• Genus †Spyrebria <small>Frenguelli 1940</small>
• Genus Hermesinum <small>Zacharias 1906</small> [Bosporella <small>Hovasse 1931</small>]

References