. Bulletin - United States National Museum. Science. D E F Fig. 111.—Opercula of Galeopsis, X85 A. B. Galeopsis mutabilis, new species. Two forms of opercula. C-F. Gale- opsis pupa Jullien, 1903. C. Operculum probably of zooecium with spiramen. D. Operculum of probably ovicelled zooecium. E. Operculum of ovicelled zoo- ecium. F. Operculum of zooecium probably without spiramen. and the operculum is almost identical with that of Gcj>lti/roj)hora polymorpha Busk, 1885. It is therefore with reason that in 1923 we placed the two genera in the same family. Biology.—The proximal border of the aper
. Bulletin - United States National Museum. Science. D E F Fig. 111.—Opercula of Galeopsis, X85 A. B. Galeopsis mutabilis, new species. Two forms of opercula. C-F. Gale- opsis pupa Jullien, 1903. C. Operculum probably of zooecium with spiramen. D. Operculum of probably ovicelled zooecium. E. Operculum of ovicelled zoo- ecium. F. Operculum of zooecium probably without spiramen. and the operculum is almost identical with that of Gcj>lti/roj)hora polymorpha Busk, 1885. It is therefore with reason that in 1923 we placed the two genera in the same family. Biology.—The proximal border of the aperture is placed just at the level of the orifice; this disposition facilitates the passage of the eggs, the operculum closing the spiramen. The ectoeyst is very pale green; some zooecia have a clear rose color. Our specimens were in full reproduction and fixation Febru- ary 15, 1008. There are three kinds of opercula probably correspond- ing to ovicelled zooecia, to zooecia with spiramen and to those without 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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