. Bulletin - United States National Museum. Science. yOKTH AMERICAN LATER TERTIARY AND QUATERNARY BRYOZOA. 127. Fig. 22.—Subgenus Ellipsopora, new. A-F. EUipsopora (Microporella) Jlabellaris Busk, 1852. A. Zooecia with avicularia, X 40. B. The distal end of a zooecium, X 100. C. Zooecia from the basal surface, X 40. Besides the basal wall of the dietellae, the small triangular basal surface of the vibracular chamber is seen lowest down to the right on the four zooecia. On some zooecia the basal surface shows a septula and on others an opening corre- sponding with a septula in an opposite zooec
. Bulletin - United States National Museum. Science. yOKTH AMERICAN LATER TERTIARY AND QUATERNARY BRYOZOA. 127. Fig. 22.—Subgenus Ellipsopora, new. A-F. EUipsopora (Microporella) Jlabellaris Busk, 1852. A. Zooecia with avicularia, X 40. B. The distal end of a zooecium, X 100. C. Zooecia from the basal surface, X 40. Besides the basal wall of the dietellae, the small triangular basal surface of the vibracular chamber is seen lowest down to the right on the four zooecia. On some zooecia the basal surface shows a septula and on others an opening corre- sponding with a septula in an opposite zooecium. D. Radical fibers, X 140. E. Operculum, X 140. F. Mandible, X 55. (A-F, after Levinsen, 1909.) Ellipsopora, new subgenus. The aperture is transverse, elliptical. The operculum is elliptical and closes the ovicell. The frontal is a tremocyst. There is a vibraculum on each zooecium. Genotype.—Ellipsopora. (Eschara) Jlabellaris Busk, 1852. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off.
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