| Genus: Chaetoceros | Diatom  Common West Coast species: C. didymus, C.   decipiens, C. debilis, C. convolutus, C. constrictus,  C. compressus, C.   radicans Order: Biddulphiales Family: Chaetocerotaceae  
 Click on the illustrations to enlarge   Description: Cells form chains that are   coiled, curved or straight. Long setae emerge from corners of cells. A few   solitary species are found in Monterey Bay. One of the largest genera of   diatoms, roughly 400 species, most of which are marine. Some species form   resting spores and/or auxospores. Cell Size: Width (apical axis) varies with   species, roughly ranges from <10 um to 50um. Distribution: Chaetoceros spp. are often   dominant components of the phytoplankton community in Monterey Bay, and they are widespread   throughout the world’s oceans.  IFCB images             |