. Bulletin - United States National Museum. Science. BRYOZOA OF THE PHILIPPINE REGION 481 ( = luneocia Levinsen, 1909) the authors have noted the presence of small special openings perforating the colony; they are always very rare and the greater part of the colonies are deprived of them. They have been observed only in the following species; C. philippinensis Busk, 1854 (Maplestone 1910, Waters 1921), C. angulopora T. Woods, 1880 (Whitelegge, 1887, Waters 1921, Levin- sen 1909), Bipora elegans Whitelegge, 1887 and Trochosodon decussis, new species. The great rarety of these zooeciules indicat
. Bulletin - United States National Museum. Science. BRYOZOA OF THE PHILIPPINE REGION 481 ( = luneocia Levinsen, 1909) the authors have noted the presence of small special openings perforating the colony; they are always very rare and the greater part of the colonies are deprived of them. They have been observed only in the following species; C. philippinensis Busk, 1854 (Maplestone 1910, Waters 1921), C. angulopora T. Woods, 1880 (Whitelegge, 1887, Waters 1921, Levin- sen 1909), Bipora elegans Whitelegge, 1887 and Trochosodon decussis, new species. The great rarety of these zooeciules indicate that they. Fig. 206.—Thin sections of Conescharellina, all X 10 A. C. jucunda, new species. Meridian section. B. C. milleporacea, new spe- cies. Meridian section. C, D. C. catella, new species. Transverse and median section. E. C. delicatula, new species. Meridian section. F. C. elongata, new species. Transverse section in the vicinity of the base. The shaded cells are cut tangentially with their walls. G, H. C. breviconica, new species. G. Merid- ian section through a small colony in which the base is little cancellated. H. Similar section through a large colony with much cancellated base. are only morphological accidents and their study is absolutely secondary. We have observed much more frequently and on almost all the species, "special zooecia" characterized by the presence of a very large orbicular aperture. These are perhaps gonoecia but we have no proof in confirmation of this idea. They are not incomplete zooecia for they are arranged among the others. (PI. 68, fig. 4.) The zoarial architecture is not so beautiful nor so varied as that in Flabettopora, in which the diversity of forms is remarkable; large or small, broad or elongated, it is always a cone. The exterior ornamentation is certainly a special adaptation of a function determined by the aquatic medium and which is difficult. Please note that these images are extracted from scanned page images that
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