Platessa strelnikovae

Enache, Potapova and E.Morales 2014      Category: Monoraphid

Platessa stewartii


Playaensis circumfimbria

LM scalebar = 10 µm = 80 pixels.


Contributor: Marina Potapova - December 2014
Length Range: 11-19 µm
Width Range: 6-7 µm
Striae in 10 µm: 14-17


Valves are broadly elliptic with rounded, sometimes slightly protracted apices. The raphe valve is concave and the rapheless valve is convex. The raphe valve has a narrow, straight axial area, widening towards a rhomboid central area. The raphe is straight with simple ends. Terminal raphe fissures are absent. The axial area of the rapheless valve is broad, rhomboid, with a horseshoe depression on one side that extends to the valve margin. Striae are biseriate and radiate.

Original Description

Author: Enache, Potapova and E.Morales 2014
Length Range: 11-19 µm
Width Range: 6-7 µm
Striae in 10 µm: 14-17

Original Description

Original Images

Cite This Page:
Potapova, M. (2014). Platessa strelnikovae. In Diatoms of the United States. Retrieved April 21, 2018, from

Species: Platessa strelnikovae

Contributor: Marina Potapova

Reviewer: Sarah Spaulding


Enache, M.D., Potapova, M. and Morales, E.A. (2014). Platessa strelnikovae (Bacillariophyta), a new species from Maine and Vermont lakes, USA. Nova Hedwigia, Beiheft 143: 239–244.

Links & ID's

Index Nominum Algarum (INA)

California Academy of Sciences (CAS)

North American Diatom Ecological Database (NADED)


Autecology Discussion

Platessa strelnikovae has been so far found in sediments of three lakes in Vermont and Maine. These lakes are soft-water, circumneutral and mesotrophic.