. Bulletin - United States National Museum. Science. 450 BULLETIN 100, UNITED STATES NATIONAL MUSEUM are separated by a narrow longitudinal ridge in the central line. A little proximally to the aperture we find a median pore surrounded by a ring which is continuous with the longitudinal ridge. The. A H Fig. L82- Genus Cribricellina Canu and Bassler, 1927 A ('<. Cribricellina riifa MacGillivray, 1SGS. A. General aspect, frontal and basal, of the branches. B. Lateral view of the zooecia. The small .suprascapular chamber, (lie greatly bent infrascapular chamber and the slightly bent pedal cham
. Bulletin - United States National Museum. Science. 450 BULLETIN 100, UNITED STATES NATIONAL MUSEUM are separated by a narrow longitudinal ridge in the central line. A little proximally to the aperture we find a median pore surrounded by a ring which is continuous with the longitudinal ridge. The. A H Fig. L82- Genus Cribricellina Canu and Bassler, 1927 A ('<. Cribricellina riifa MacGillivray, 1SGS. A. General aspect, frontal and basal, of the branches. B. Lateral view of the zooecia. The small .suprascapular chamber, (lie greatly bent infrascapular chamber and the slightly bent pedal chamber are seen; X/35. C. A zooeeium from the basal surface. The suprascap- ular and the infrascapular chambers are seen and less distinctly the pedal, X55. D. A terminal gonozooecium, X40. E. Lateral view of (hegonozooecium, X40. F. A sagittal section of a gonozooecium, X23. G. A portion of the sternal area from the internal surface. The cryptocyst plate is seen, X 100. H-K. Cribricellina cribruriaTiWRk, 1852. H. General aspect, frontal and basal, of the branches. (A, H. After MacGillivray.) I. Lateral view of a zooeeium, X55. J. Basal surface of a zooeeium, X55. K. A portion of the external area from the internal surface. The cryptocyst plate is seen, X 100. (B-G, I-K, after Levinsen. 1909.) aperture is provided with well developed distinct hinge-teeth and has a proximal concave margin. Genotype.—Strophipora (Catenicella) harveyi W. Thompson. 1858. Range.—Miocene of Australia. Recent. In this gentis are included the three following subgenera of Mac- Gillivray which differ only in secondary characters. Subgenus Microstomarm MacGillivray, 1895. The zooecin are small. The apertura is small, nearly circular and projecting forward. Example: Microstomaria tuhdifera MacGillivray, 1895, from the Mioeene of Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustr
Size: 1885px × 1326px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
