Navicula vilaplanii

(Lange-Bert. and Sabater) Lange-Bert. and Sabater in Rumrich et al. 2000      Category: Symmetrical biraphid
BASIONYM: Navicula longicephala var. vilaplanii Lange-Bert. and Sabater in Sabater et al. 1990

Navicula veneta


Navicula viridula

LM scalebar = 10 µm = 80 pixels.


Contributor: Marina Potapova - October 2011
Length Range: 12-16 µm
Width Range: 2.5-3.3 µm
Striae in 10 µm: 20-24


Valves are linear-lanceolate with very slightly protracted apices. The axial area is narrow and straight. The central area is small. The raphe is straight, with close proximal ends. Striae are strongly radiate around the center, becoming convergent at the apices. The areolae are indistinguishable under LM, approximately 50 in 10 μm.

Original Description

Basionym: Navicula longicephala var. vilaplanii
Author: Lange-Bert. and Sabater in Sabater et al. 1990
Length Range: µm
Striae in 10 µm:

Original Description

Valves narrow, linear lanceolate, apices rounded to subcapitate, length of 14-17 µm, 2.5-3.3 µm width. Raphe straight and filiform, bent at the end, axial area narrow and linear, central area rounded, transapical striae radial in the center, highly convergent in the poles, 19-22 in 10 µm. Striae made up by 6-8 areolae/µm (in S.E.M.).

Original Images

Cite This Page:
Potapova, M. (2011). Navicula vilaplanii . In Diatoms of the United States. Retrieved April 21, 2018, from

Species: Navicula vilaplanii

Contributor: Marina Potapova

Reviewer: Sarah Spaulding


Rumrich, U., Lange-Bertalot, H. and Rumrich, M. (2000). Diatoms of the Andes. From Venezuela to Patagonia/Tierra del Fuego and two additional contributions. Lange-Bertalot, H. (ed.), Iconographia Diatomologica. Annotated Diatom Micrographs. Vol. 9. Phytogeography-Diversity-Taxonomy. Koeltz Scientific Books, Königstein, Germany, 9:673 pp.

Sabater, S., Tomàs, X., Cambra, J. and Lange-Bertalot, H. (1990). Diatom flora of the Cape of Creus Peninsula, Catalonia, N.E. of Spain. Nova Hedwigia 51(1-2):165-195.

Links & ID's

Index Nominum Algarum (INA)

Original INA

California Academy of Sciences (CAS)

Navicula vilaplanii CAS

North American Diatom Ecological Database (NADED)

NADED ID: 46892

Autecology Discussion

EMAP Assessment

The Environmental Protection Agency (EPA) western Environmental Monitoring and Assessment Program (EMAP) study was completed during the years 2000-2004 (see citations at bottom of this page). Over 1200 streams and rivers in 12 western states (Arizona, California, Colorado, Idaho, Montana, Nevada, North Dakota, Oregon, South Dakota, Utah, Washington and Wyoming) were selected for sampling based on a stratified randomized design. This type of design insures that ecological resources are sampled in proportion to their actual geographical presence. Stratified randomized design also allows for estimates of stream length with a known confidence in several “condition classes” (good or least-disturbed, intermediately-disturbed, and poor or most-disturbed) for biotic condition, chemistry and habitat.

EMAP Distribution

Navicula vilaplanii

EMAP Response Plots

Navicula vilaplanii

EMAP citations

Results are published in:

Johnson, T., Hermann, K., Spaulding, S., Beyea, B., Theel, C., Sada, R., Bollman, W., Bowman, J., Larsen, A., Vining, K., Ostermiller, J., Petersen, D. Hargett, E. and Zumberge, J. (2009). An ecological assessment of USEPA Region 8 streams and rivers. U.S. Environmental Protection Agency Region 8 Report, 178 p.

Stoddard, J. L., Peck, D. V., Olsen, A. R., Larsen, D. P., Van Sickle, J., Hawkins, C. P., Hughes, R. M., Whittier, T. R., Lomnicky, G. A., Herlihy, A. T., Kaufman, P. R., Peterson, S. A., Ringold, P. L., Paulsen, S. G., and Blair, R. (2005). Environmental Monitoring and Assessment Program (EMAP) western streams and rivers statistical summary. U.S. Environmental Protection Agency Report 620/R-05/006, 1,762 p.

Stoddard, J. L., Peck, D. V., Paulsen, S. G., Van Sickle, J., Hawkins, C. P., Herlihy, A. T., Hughes, R. M., Kaufman, P. R., Larsen, D. P., Lomnicky, G. A., Olsen, A. R., Peterson, S. A., Ringold, P. L., and Whittier, T. R. (2005). An ecological assessment of western streams and rivers. U.S. Environmental Protection Agency Report 620/R-05/005, 49 p.