portrait

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Portrait of Phacotus lenticularis, a volvocid flagellate. Lorica is composed of two shallow cup-shaped halves cemented together around the protoplast. Lorica surface is slightly rough and colored by minerals Two equal-length flagella protrude through an anterior pore in the lorica. Cup-shaped chloroplast. A stigma is present but not seen in these images. From a freshwater pond near Boise, Idaho. Phase contrast.