. Bulletin - United States National Museum. Science. Fig. 195. Genus Onchoporella Husk, \^'<~l A-M. Onchoporella bombycina Busk, 1852. A. Ovicelled zooecia, X40. B. A sagittal section through two zooecia with ovicell; the cryptocyst removed; X40. ('. A sagittal section through t^ zooecia, furnished with radical filters. The one descending part of the distal wall is seen, X40. D. Two zooecia with radical fibers from the basal surface, X40. E. A part of the margin of a colony, X40. F. Zooecia with developing ovicells X 40. G. Transverse sections of two zooecia and of a kenozooecium X40. H. Th


. Bulletin - United States National Museum. Science. Fig. 195. Genus Onchoporella Husk, \^'<~l A-M. Onchoporella bombycina Busk, 1852. A. Ovicelled zooecia, X40. B. A sagittal section through two zooecia with ovicell; the cryptocyst removed; X40. ('. A sagittal section through t^ zooecia, furnished with radical filters. The one descending part of the distal wall is seen, X40. D. Two zooecia with radical fibers from the basal surface, X40. E. A part of the margin of a colony, X40. F. Zooecia with developing ovicells X 40. G. Transverse sections of two zooecia and of a kenozooecium X40. H. The first beginning of an ovicell, X40. I. De- veloping ovicell, a little older. J. Developing ovicell, in which the basal surface of the cryptocyst is almost formed, X100. (A-J. After Levinsen, 1909). K. Distal wall, X25. L. Distal wall, X85, with uniporous septulae. M. Lateral wall. X25, showing raised ovicell and multiporous septulae I K -M. After Waters, 1896). Genus ONCHOPOROIDES Ortmann, 1850 The zoarium is unilamellar, clavulate. No ascoporc visible. The compensatrix opens immediately OD the proximal border of the apertura. There are frontal and lateral septulae. Genotype.—Onchoporoides (Carbasea) irwsehyi Busk, 1884. 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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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience