Gmelin 1788 Category: Nitzschioid
TYPE SPECIES: Bacillaria paradoxa Gmelin
Bacillaria is one of the genera in which the raphe is located within a raised keel. In contrast to the excentrically positioned raphe and keel of Nitzschia, the raphe of Bacillaria is centrally positioned, along the apical axis. The striae are distinct and relatively coarse. Living cells form colonies, linked by the keel. Living cells within colonies are joined by silica hooks near the keel, and these silica hooks allow the cells to slide past one another in coordinated movements.
Bacillaria is found in marine, brackish, and freshwaters with high conductivity and often nutrient rich conditions.
Cite This Page:
Spaulding, S., and Edlund, M. (2008). Bacillaria. In Diatoms of the United States. Retrieved August 21, 2014, from http://westerndiatoms.colorado.edu/taxa/genus/Bacillaria