Cell is medium-sized, almost isodiametric, generally a little longer than wide, and convex-pentagonal. The epitheca ... [details]

The cell is medium-sized. The epitheca is long and conical with sides that are generally concave near the cingulum. ... [details]

Cell is small- to medium-sized, somewhat flattened anterior-posteriorly. This species usually forms curved chains. ... [details]

Cells are usually isodiametric or a bit longer than wide. The epitheca is convex-conical, The antapex has a ... [details]

This species is rather large and does not form chains. The epitheca is very regularly conic-convex, somewhat ... [details]

Cell is small, oval to elliptical in ventral view, and somewhat dorsoventrally flattened. Cingulum is ... [details]

Cell size is medium to large. It is very anteriorly-posteriorly flattened, like a rather irregular loaf; sometimes ... [details]

The cell is relatively large and not quite spherical. The epitheca is somewhat conic-convex, with regularly curved ... [details]

The cell is medium- to large-sized and irregularly pentagonal- shaped. The short, convex, wide, and dome-shaped ... [details]

Cell is small- to relatively large-sized and is somewhat isodiametric. In ventral view, the shape is irregularly ... [details]

Cell is medium-sized, isodiametric or a little wider than long. In ventral view, its contour is i rather regular. ... [details]

Cells are medium-sized and rather pyriform. The epitheca is usually a little shorter than the hypotheca, somewhat ... [details]

The most distinguishing characteristic of this species is the shape of the PO, which differentiates it from all ... [details]

Its structure is very different than the structure of its other congenera. It is useful to note that the S.a., ... [details]

This species shares with A. kutnerae and A. cohorticula, a very distinctive character: the S.a. has a ... [details]

It is most similar to A. pseudogoniaulax, but the two are easily distinguished because A. hiranoi has an almost ... [details]

This species is part of a group characterized by relatively large size, spheroid or wide ellipsoid shapes, and no ... [details]

This species is unmistakable. The characters that most easily distinguish this species are the general shape and ... [details]

Other Alexandrium (Gessnerium) were described that, while very similar to A. pseudogoniaulax, are clearly different ... [details]

This species shares with A, kutnerae and A. cohorticula, a very distinctive character: the S.a. has a ... [details]

Undoubtedly, this species is very closely related to A. pseudogoniaulax Biecheler, with which it was confused ... [details]