Research Fellowships & Internships Education and Public Programs Donate About SERC Contacts SERC Home SERC Home

Bacillaria paxillifer syn Bacillaria paradoxa, Nitzschia paradoxa

These cells form unique colonies in which the cells slide back and forth against each other much like a carpenter's rule, a common name given to this species, and then retracting to tabular, ribbon arrays. They are 70-115µ long and 5-6µ wide appearing rectangular in girdle view and linear lanceolate in valve view. Collected from the Ross Sea 2005. See Horner in Taxonomic References.