BrĂ©bisson ex Van Heurck 1896      Category: Surirelloid
TYPE SPECIES: Stenopterobia intermedia Lewis




Image Credit: Elizabeth Ruck

CLASS: Bacillariophyceae
  ORDER: Surirellales
    FAMILY: Surirellaceae

  1. Valves long, thin
  2. Symmetry lanceolate or sigmoid
  3. Raphe within a canal
  4. Raphe positioned along entire valve margin

The valves of Stenopterobia are narrow and may be straight or sigmoid in valve outline. Symmetry may be lanceolate or sigmoid. Like other members of the Surirellaceae, the raphe is positioned within a canal and positioned along the valve margin. The canal in Stenopterobia is raised above the valve, onto a keel.

Species within Stenopterobia are typically are found in low conductivity, nutrient poor, acidic waters. For example, Stenopterobia often dominates the pond habitats of the Carolina Bays, on the Atlantic Coastal Plain.

Cite This Page:
Spaulding, S., and Edlund, M. (2010). Stenopterobia. In Diatoms of the United States. Retrieved February 13, 2016, from

Contributor: Sarah Spaulding | Mark Edlund - October 2010