. Bulletin - United States National Museum. Science. BRYOZOA OF THE PHILIPPINE REGION 169. Fig. 46.—Genus Alysidium Busk, 1852 A-O. Alysidium parasilicum Busk, 1852. A. A gonozooecium with a double-valved ovicell is seen on the lowermost zooecium, X40. B. A zooecium, X75. C. A zooecium from the basal surface. The bent distal wall is seen, X75. D. A longitudinal section through a zooecium, X75. E. A gonozooecium from the frontal zooecia bearing surface after the removal of the ovicell. The two elongated openings are seen, through which the ovicellarian valves have been in communication with the
. Bulletin - United States National Museum. Science. BRYOZOA OF THE PHILIPPINE REGION 169. Fig. 46.—Genus Alysidium Busk, 1852 A-O. Alysidium parasilicum Busk, 1852. A. A gonozooecium with a double-valved ovicell is seen on the lowermost zooecium, X40. B. A zooecium, X75. C. A zooecium from the basal surface. The bent distal wall is seen, X75. D. A longitudinal section through a zooecium, X75. E. A gonozooecium from the frontal zooecia bearing surface after the removal of the ovicell. The two elongated openings are seen, through which the ovicellarian valves have been in communication with the dietellae of the gonozooecium, X75. F. A transverse section through the distal end of a zooecium. A row of uniporous septulae is (very indistinctly) seen, X75. G. The end of a branch with a cylin- drical internode, X40. H. A gonozooecium with the ovicellarian valves open, X55. I. An ovicellarian valve from the internal surface, X55. J. A gonozooe- cium with (ivicell seen from the basal edge, X40. K. A gonozooecium with developing ovicellarian valves, lateral view. A lateral dietella and a part of the basal one are seen, X75. L. The same gonozooecium from the basal edge, X75. M. The stem of the gonozooecium. The distal wall (d iv) and a uni- porous septula are seen, X75. N. The stem of the gonozooecium, lateral view. Opposite the proximal part of the oval depression the oblique distal wall is seen, X75. O. An oblique section through the middle part of the stalklike kenozooecium, seen from the basal surface. The three septulae of the distal wall are seen, X75. (A-O. After Levinsen, 1909.). 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 D
Size: 2120px × 1179px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
