Guide to Ctenophora
Credit: Kenneth Justin Jones
- Valve elongate, linear-lanceolate
- Central area a thickened fascia with ghost striae
- Rimoportulae present at each pole
- Rimoportula positioned diagonally
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.