Grunow 1860      Category: Symmetrical biraphid
TYPE SPECIES: Scoliopleura peisonis Grunow




CLASS: Bacillariophyceae
  ORDER: Naviculales
    FAMILY: Scoliotropidaceae

  1. Valves twisted about apical axis
  2. Longitudinal canals evident on both sides of the raphe
  3. Proximal raphe ends deflected in opposite directions

Although the valve margins of Scoliopleura are linear-lanceolate, the frustules are twisted about the apical axis. Longitudinal canals are present on both sides of the raphe. The raphe is slightly sigmoid because of the twist, or torsion, of the frustule. The proximal raphe ends are deflected in opposite directions and the distal raphe ends are divergent. Striae are formed by loculate punctae.

A single species is found in inland waters of high salinity, S. peisonis. Scoliopleura appears to be closely related to Muelleria (Spaulding et al. 1997).

Cite This Page:
Spaulding, S., and Edlund, M. (2008). Scoliopleura. In Diatoms of the United States. Retrieved April 22, 2018, from

Contributor: Sarah Spaulding | Mark Edlund - December 2008