(Grunow) Williams and Round 1986 Category: Araphid
TYPE SPECIES: Ctenophora pulchella (Ralfs ex Kützing) Williams and Round
Ctenophora frustules are elongate and linear-lanceolate in valve outline. The central part of the valve has a thickened area, or fascia, with faint, ghost striae. Each pole contains a rimoportula, positioned near the axial area. The rimoportula is positioned diagonally. Living cells grow in tuft-like colonies, attached to surfaces by mucilage pads.
The genus is common in brackish waters, including sites that have anthropogenic inputs of salts.
Cite This Page:
Spaulding, S., and Edlund, M. (2008). Ctenophora. In Diatoms of the United States. Retrieved August 31, 2016, from http://westerndiatoms.colorado.edu/taxa/genus/Ctenophora