portrait

Descrição:

Portarit of the centroheliozoan Parasphaerastrum marina (Ostenfeld,1904)Mikrjukov,1996.The periplast is composed of tangential solid slightly curved siliceous rod with pointed ends. Radial elements are absent.Extrusomes are visible along the axopodia. The cytoplasm contains refractile crystalline inclusions. Cells may form pseudocolonies (aggregates of cells without cytoplasmic connections).Collected from a commercial marine aquarium in Boise, Idaho.October, 2005.DIC.