Hippodonta gravistriata

(Patrick) Potapova 2013      Category: Symmetrical biraphid
BASIONYM: Navicula gravistriata Patrick 1959

Hippodonta coxiae


Hippodonta hungarica

LM scalebar = 10 µm = 80 pixels.


Contributor: Marina Potapova - February 2013
Length Range: 11-21 µm
Width Range: 4.0-6.7 µm
Striae in 10 µm: 11-13


Valves are rhombic-lanceolate with attenuate apices. The striae are uniseriate, slightly radiate in the center and almost parallel or slightly convergent at the ends. Areolae are slit-shaped and number 42-50 in 10 mm. The central area is transverse and rectangular. The raphe is filiform and has tear-drop shaped distal and proximal ends. A row of areolae is present at the valve apex. The valvocopula are deep.

Original Description

Basionym: Navicula gravistriata
Author: Patrick 1959
Length Range: 12-22 µm
Width Range: 4-7 µm
Striae in 10 µm: 11-13

Original Description

Original Images

Cite This Page:
Potapova, M. (2013). Hippodonta gravistriata. In Diatoms of the United States. Retrieved August 24, 2016, from http://westerndiatoms.colorado.edu/taxa/species/hippodonta_gravistriata

Species: Hippodonta gravistriata

Contributor: Marina Potapova

Reviewer: Sarah Spaulding


Patrick, R.M. (1959). New species and nomenclatural changes in the genus Navicula (Bacillariophyceae). Proceedings of the Academy of Natural Sciences of Philadelphia 111 (1959): 91-108 . http://www.jstor.org/stable/4064508

Potapova, M. (2013). The types of 22 Navicula (Bacillariophyta) species described by Ruth Patrick. Proceedings of the Academy of Natural Sciences of Philadelphia 162: 1-23.

Links & ID's

Index Nominum Algarum (INA)

Transfer INA

California Academy of Sciences (CAS)

Hippodonta gravistriata CAS

North American Diatom Ecological Database (NADED)


Autecology Discussion

Hippodonta gravistriata have been reported from the tidal zones of the Sabine River, Texas, and from the Patuxent and Potomac Rivers, Maryland.