. Bulletin - United States National Museum. Science. Fig. 117.—Stigmatella fookdh. a, a large sPEcniEN of Callopora fooedh, of the natural size; b, TANGENTIAL SECTION OF THE SAME, SHOWING THE PSEUDOSEPTAL FOLDS IN THE AUTOPORES [ZOCECIA], ENLARGED TWENTY TIMES; C, VERTICAL SECTION OF THE SAME, SIMILARLY ENLARGED, O, AUTOPOEES, m, MESOPORES. OEDOVICLiN ROCKS OF ESTHONIA. (AFTEE NiCNOLSON.) been observed. In order to show the change most clearly, the zooecial cavities in figure 118 & have been shaded. All of these figures are drawn from the same tangential section which passes somewhat obhqu
. Bulletin - United States National Museum. Science. Fig. 117.—Stigmatella fookdh. a, a large sPEcniEN of Callopora fooedh, of the natural size; b, TANGENTIAL SECTION OF THE SAME, SHOWING THE PSEUDOSEPTAL FOLDS IN THE AUTOPORES [ZOCECIA], ENLARGED TWENTY TIMES; C, VERTICAL SECTION OF THE SAME, SIMILARLY ENLARGED, O, AUTOPOEES, m, MESOPORES. OEDOVICLiN ROCKS OF ESTHONIA. (AFTEE NiCNOLSON.) been observed. In order to show the change most clearly, the zooecial cavities in figure 118 & have been shaded. All of these figures are drawn from the same tangential section which passes somewhat obhquely through the zoarium with the result that one end cuts the immature zone and the rest of the passes through various phases of the mature region. As a description of this species has never been given, the following diagnosis is in order: Zoarium of small, depressed, hemispheric masses seldom over 20 mm. in diameter; basal side flat and covered with a concentrically wrmkled epitheca, celluliferous surface smooth with clusters of larger zooecia and more numerous mesopores at regular intervals. Zocecia small, polygonal or petaloid, seven in 2 mm. with an average aper- ture about mm. in diameter. Mesopores angular, thin-walled, and numerous enough to frequently surround the zooecia. Acantho- pores very small, varying from two to eight to a zocecium and devel-. 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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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
