. Bulletin - United States National Museum. Science. Fig. 93.—Genus Cornucopina Levinsen, 1909 A-E. Cornucopina grandis Busk, 1852. A. Two zooecia showing a finely dentated cryptocyst, X40. The zooecia are very asymmetrical, from the nar- row tubelike proximal part widening into an obliquely funnel shaped extremity. B. The same zooecia from the basal surface. The radical fibers, which go down along the basal surfaces of the colony, are issued from a septula a good ways f list ally on the basal aspect of the zooecia, X40. C. A zooecium with a large avicularium, X40. D. The frontal surface of th
. Bulletin - United States National Museum. Science. Fig. 93.—Genus Cornucopina Levinsen, 1909 A-E. Cornucopina grandis Busk, 1852. A. Two zooecia showing a finely dentated cryptocyst, X40. The zooecia are very asymmetrical, from the nar- row tubelike proximal part widening into an obliquely funnel shaped extremity. B. The same zooecia from the basal surface. The radical fibers, which go down along the basal surfaces of the colony, are issued from a septula a good ways f list ally on the basal aspect of the zooecia, X40. C. A zooecium with a large avicularium, X40. D. The frontal surface of the avicularium, X40. E. The avicularian mandible, X55. F-I. Cornucopina infundibulata Busk, 1885. F-H. A zooecium with ovicell in three different positions; the distal wall is seen in G and H, X23. The ovieclls are placed on zooecia of ordinary size. I. A sagittal section through the same ovicell bearing zooecium; it shows that the ovicell is surrounded by a kenozooe- ium, X23. (Figs. Alter Levinsen, 1909.) Family BEANIIDAE Canu and Bassler, 1927 No ovicell; the larva develops in the interior of the female zooecia in which the polypide is small. The zooecia are little calcified and are joined together by stoloniform prolongations containing a multi- porous septule. Often there are pedunculate avicularia. The dorsal frequently bears large radicells with multifid base. The colonies are unilamellar, uni or 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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