Diatoms
of Orange County, California
Compiled by Peter J. Bryant, School of Biological Sciences, University of California, Irvine

Centric (Radially Symmetric) Diatoms

Chaetoceros sp.
Chaetoceros sp.
Corethron sp.
Coscinodiscus sp.
Ditylum sp.

Eucampia sp.
Leptocylindrus sp.
Centric diatom undergoing binary fission.		  
Pennate (Bilaterally Symmetric) Diatoms

Asterionellopsis glacialis
Bacillaria sp. (two individuals)
Bacillaria sp.
Cylindrotheca sp.
Licmophora flabellata

Lioloma sp.
Navicula sp.
Navicula sp.
Nitzschia sp.
Pleurosigma sp.

Pleurosigma sp.
Pseudo-nitzschia spp.