. Bulletin - United States National Museum. Science. 274 BULLETIN 100, UNITED STATES NATIONAL MUSEUM The aperture seen under a good light, is in reality transverse with schizoporidan aspect and a wide rimule; there is therefore a very large semielliptical anter and a small, concave poster. The operculum is black; it opens in the peristomie without closing the ovicell. Biology.—We have some specimens which were in reproduction February 15, 1908. There are some ovicelled zooecia deprived of spiramen and also some nonovicelled zooecia which lack it; the spiramen is therefore no more necessary to
. Bulletin - United States National Museum. Science. 274 BULLETIN 100, UNITED STATES NATIONAL MUSEUM The aperture seen under a good light, is in reality transverse with schizoporidan aspect and a wide rimule; there is therefore a very large semielliptical anter and a small, concave poster. The operculum is black; it opens in the peristomie without closing the ovicell. Biology.—We have some specimens which were in reproduction February 15, 1908. There are some ovicelled zooecia deprived of spiramen and also some nonovicelled zooecia which lack it; the spiramen is therefore no more necessary to the fuHction of reproduc- tion than to the hydrostatic Fig. 112.—Genus Cosciniopsis Canu and Bassler, 1927 A, B. Cosciniopsis vestita Hincks, 1882. A. Ovicelled specimen (after Hincks, 1882). B. Operculum, X 85. (After Waters, 1889.) C-F. Cosciniopsis vestita var. australis Waters, 1887. C. Zooecia, X25. D. Operculum, X85. (After Waters, 1887, 1889.) E, F. Cosciniopsis lonchoea Busk, 1884. Operculum and avicularian mandible, X140 (after Busk, 1884). G. Cosciniopsis caelatus, new species. Operculum, X85. Occurrence.— D. 5141. Jolo Light, Jolo; 6° 09' N.; 120° 58' E.; 29 fathoms; co. S. D. 5144. Jolo Light, Jolo; 6° 05' 50" N.; 121° 02' 15" E.; 19 fathoms; co. S. Cotypes.—Cat. Nos. 8024, 8025, Genus COSCINIOPSIS Canu and Bassler, 1927 The ovicell is hyperstomial; it is closed by the operculum and is porous like the frontal. The aperture bears two cardelles placed low. The frontal is a tremocyst. The operculum bears two large lateral bands; the two muscular attachments are removed from the border. Sporadic avicularia appear in the vicinity of the 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 Stat
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