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Gomphonema manubrium

Fricke 1904      Category: Asymmetrical biraphid

Gomphonema louisiananum


Gomphonema mehleri

LM scalebar = 10 µm = 80 pixels.


Contributor: Meredith Tyree | Ian Bishop - February 2016
Length Range: 32-40 µm
Width Range: 8.9-9.8 µm
Striae in 10 µm: 11-14 in the center valve, 14-16 at the ends


Valves are lanceolate-clavate, with an inflated central valve. The valve tapers from the center to a rounded headpole. The valve markedly tapers from the center to a narrow footpole. The axial area is lanceolate. A single stigma is present. The raphe is lateral, except at the proximal and distal raphe ends. Proximal raphe ends curve toward the stigma. Striae are parallel to weakly radiate at the center valve. Striae are parallel at the headpole and radiate at the footpole. A distinct porefield is present at the footpole.

Original Description

Author: Fricke in Schmidt et al. 1904
Length Range: µm
Striae in 10 µm:

Original Description

  1. Orono River, Maine (B. A.). G. Manubrium n. sp.

Original Images

Cite This Page:
Tyree, M., and Bishop, I. (2016). Gomphonema manubrium. In Diatoms of the United States. Retrieved May 23, 2018, from

Species: Gomphonema manubrium

Contributor: Meredith Tyree | Ian Bishop

Reviewer: Mark Edlund


Kociolek, J.P. and Kingston, J.C. (1999). Taxonomy, ultrastructure, and distribution of some gomphonemoid diatoms (Bacillariophyceae: Gomphonemataceae) from rivers in the United States. Canadian Journal of Botany 77: 686-705. 10.1139/cjb-77-5-686

Kociolek, J.P. and Stoermer, E.F. (1991). Taxonomy and ultrastructure of some Gomphonema and Gomphoneis taxa from the Upper Laurentian Great Lakes. Canadian Journal of Botany 69: 1557-1576. 10.1139/b91-200

Schmidt, A. (-). (1874-1959). Atlas der Diatomaceen-Kunde, von Adolf Schmidt, continued by Martin Schmidt, Friedrich Fricke, Heinrich Heiden, Otto Muller, Friedrich Hustedt. Reprint 1984, Koeltz Scientific Books, Konigstein, 480 plates.

Thomas, E.W., Kociolek, J.P., Lowe, R.L. and Johansen, J.R. (2009). Taxonomy, ultrastructure and distribution of gomphonemoid diatoms (Bacillariophyceae) from Great Smoky Mountains National Park (U.S.A.). Nova Hedwigia, Beiheft 135: 201-237.

Links & ID's

Index Nominum Algarum (INA)

Original INA

California Academy of Sciences (CAS)

Gomphonema manubrium CAS

North American Diatom Ecological Database (NADED)

NADED ID: 37093

Autecology Discussion


Distribution of Gomphonema manubrium in rivers of the continental U.S. based on the National Water Quality Assessment program. Retrieved 02 May 2016.

Credit/Source: USGS BioData