Frustulia neomundana
Lange-Bertalot and Rumrich 2000 Category: Symmetrical biraphid
BASIONYM: Frustulia neomundana Lange-Bertalot and Rumrich 2000
LM scalebar = 10 µm = 80 pixels.
Observations
Contributor: Carrie Graeff - May 2012
Length Range: 38.5-44.0 µm
Width Range: 7.5-8.0 µm
Striae in 10 µm: 31-32 at the center
Description
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
Basionym: Frustulia neomundana
Author: Lange-Bertalot 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 May 24, 2013, from http://westerndiatoms.colorado.edu/taxa/species/frustulia_neomundana
Species: Frustulia neomundana
Contributor: Carrie Graeff
Reviewer: Marina Potapova
Image Credit: Carrie Graeff
- Longitudinal ribs complete on one side of the valve
- Apices rostrate
- External proximal raphe ends unilaterally deflected
The longitudinal ribs of F. neomundana are complete on one the side of the valve, the same side to which the proximal raphe ends are deflected. The valves are linear-lanceolate with rostrate apices. The external proximal raphe ends are unilaterally deflected.
Compare
Frustulia neomundana has longitudinal ribs, while F. creuzburgensis lacks them. Frustulia neomundana has complete ribs on one side, while the longitudinal ribs of F. latita and F. weinholdii are incomplete on both sides. Frustulia neomundana has rostrate apices, while F. capitata has capitate or subcapitate apices. Frustulia neomundana has a lower stria density than F. soror.
Frustulia creuzburgensis
Frustulia latita
Frustulia soror
Frustulia weinholdii
Frustulia capitata
Citations
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)
California Academy of Sciences (CAS)
North American Diatom Ecological Database (NADED)
NADED ID: