. Contributions to Canadian palaeontology [microform] : volume IV. Corals, Fossil; Paleontology; Coraux fossiles; Paléontologie. COWTRIBUTIONB TO CANADIAN by Hall (op. oit.) wan obtainfld are seen further to the in the Mani- toulm Islands, The original description in aH follows--"Coral ..uwive , or hemispheric ; cells quadrangular or Hub-oval ; walk thin; rarely thicker than the walls ; arranged in a single series, in wide irregular reticulations. This species differs from the C. encharoides in the almoHt quadrangular form of the cells and the extremely
. Contributions to Canadian palaeontology [microform] : volume IV. Corals, Fossil; Paleontology; Coraux fossiles; Paléontologie. COWTRIBUTIONB TO CANADIAN by Hall (op. oit.) wan obtainfld are seen further to the in the Mani- toulm Islands, The original description in aH follows--"Coral ..uwive , or hemispheric ; cells quadrangular or Hub-oval ; walk thin; rarely thicker than the walls ; arranged in a single series, in wide irregular reticulations. This species differs from the C. encharoides in the almoHt quadrangular form of the cells and the extremely thin walls, the rwticula- tionsar^ wider and the whole aspect less solid than in that species *^^W,rata, it differs essencially in the form and arrangement f **'â¢' ^^^\^ " Eastern she, ,f Green IJay, ; What 1« particularly noticeable in this variety is the marked angularity of the coralhtes, their sides beinj; flattened, and the apparent absence of tubuleJ between them. The Ion .tudinal rows of septal spines are beautifully preserve,] in some specimens, especially in a few from East Selkirk, ManiJ toba. The variability of the size of the meshes is again seen in thiJ variety, showing that unething apart from the mere shape of the coral- lum 18 necessary for differe-itial use. Halysites catenularia, var. micropora, Whitfield. Plate III., fig. 4. Balynte, catenulatu,, var. mkroporu,. Whitfield. 1882. Geol. of Wi«con«n, vol IV â 272, pi. XIII., fig. 6. â I In the Niagara formation of Ontario specimens are met with that have very small corallites. These are similar to the ,s,,enimen. already mentioned from near Donald, (Silurian) and one from the Jumpers, Anticostt (Silurian). In most of the siâ imens seen the meshes are rather small, but in some they are comparatively large and irregular. In none, however, was the inside structure seen by means of sections, so that the writer is unable to state whether tubules are present surface'''
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