Rhopalodia musculus
(Kützing) O. Müller 1900 Category: Epithemioid
BASIONYM: Epithemia musculus Kützing 1844
SYNONYM(S): Cystopleura musculus (Kützing) Kuntze 1891 | Rhopalodia gibberula var. musculus (Kützing) Cleve-Euler 1952
LM scalebar = 10 µm = 80 pixels.
Observations
Contributor: Pat Kociolek - March 2011
Length Range: 12-60 µm
Width Range: 10-16 µm
Striae in 10 µm: 14-18
Description
Valves of this species are semi-elliptical, strongly convex along the dorsal margin, concave along the ventral margin, tapering to narrowly rounded ends. The raphe is located in the canal along the dorsal margin. There are distinct costae along the valve face that number 3-5 in 10 µm. Striae are in rows of 2-4 between the costae.
Original Description
Basionym: Epithemia musculus
Author: Kützing 1844
Length Range: µm
Striae in 10 µm:
Original Description
Original Images
Cite This Page:
Kociolek, P. (2011). Rhopalodia musculus. In Diatoms of the United States. Retrieved June 19, 2013, from http://westerndiatoms.colorado.edu/taxa/species/rhopalodia_musculus
Species: Rhopalodia musculus
Contributor: Pat Kociolek
Reviewer: Rex Lowe
Image Credit: Pat Kociolek
- Ventral margin concave
- Length 12-60 µm
- Striae multiseriate
- Costae 3-5 in 10 µm
Valves semi-elliptical, strongly convex along the dorsal margin, concave along the ventral margin, tapering to narrowly rounded ends. Costae distinct, numbering 3-5 in 10 µm. Striae are in rows of 2-4 between the costae.
Compare
The highly arched valves and shorter length easily distinguish this species from the most common species, R. gibba and R. gibberula.
Rhopalodia gibba
Rhopalodia gibberula
(Ehrenberg) O. Müller 1895
Citations
Links & ID's
Index Nominum Algarum (INA)
California Academy of Sciences (CAS)
North American Diatom Ecological Database (NADED)
NADED ID: 58006