PLATE VIII. PLUMATELLA DU Mo RTIERI and PLUMATELLA ELEGANs. Fig. 1. Plumasella Dumortieri, attached to a submerged stem. Natural size. 2. Portion of the same magnified. 3. End of a branch, with the polypide retracted, still further magnified, to show the trans parent furrow in the ectocyst, with its notch-like extremity. Portion of the calyx of the same, much magnified, to show its festooned margin. Statoblast of the same. Plumatella eleyans, attached to the under surface of a leaf of Potamo/eton. Natural size. Portion of the same magnified. Portion of the calyx of the same, much magnified, to show its nearly even margin. Statoblast of the same. i |