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

Micractinium quadrisetum

Free-floating colony of four ovate cells adjoined to other groups of four creating chains. Usually seen with 1 to 4 very long, finely tapered setae. Cells are 4-7 microns in diameter. Collected from Back River near Baltimore, MD.