Frustulia neomundana

Lange-Bert. and Rumrich 2000      Category: Symmetrical biraphid

Frustulia latita


Frustulia quadrisinuata

LM scalebar = 10 µm = 80 pixels.


Contributor: Carrie Graeff - May 2012
Length Range: 39-44 µm
Width Range: 7.5-8.0 µm
Striae in 10 µm: 31-32 at the center


The valves are linear-lanceolate with rostrate apices. The striae are parallel or slightly radiate at the valve center and parallel along the length of the valve. Areolae comprising the striae are round or oval. At the central area, the striae give the central area a relatively linear appearance, although one or a few areolae may extend onto the central area. Internally, the longitudinal ribs terminate well before both the helictoglossae. The longitudinal ribs are complete on the side of the valve to which the proximal raphe ends are deflected.

These records of F. neomundana are from the Hawaiian Islands. The species has reported from South America, but not from the continental U.S.

Original Description

Author: Lange-Bert. and Rumrich 2000
Length Range: 40.0-60.0 µm
Width Range: 8.0-8.6 µm
Striae in 10 µm: 29-33

Original Description

Original Images

Original text and images reproduced with permission by Koeltz Scientific Books.

Cite This Page:
Graeff, C. (2012). Frustulia neomundana. In Diatoms of the United States. Retrieved April 25, 2018, from

Species: Frustulia neomundana

Contributor: Carrie Graeff

Reviewer: Marina Potapova


Graeff, C.L. and Kociolek, J.P. (2011). Investigations of the Frustulia weinholdii species complex with descriptions of three new species, F. capitata, F. latita, and F. soror from South Carolina and Hawaii. Proceedings of the Academy of Natural Sciences of Philadelphia 161: 43-59.

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.

Links & ID's

Index Nominum Algarum (INA)

Original INA

California Academy of Sciences (CAS)

Frustulia neomundana CAS

North American Diatom Ecological Database (NADED)


Autecology Discussion