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Excerpt from The Morphology and Taxonomy of the Halysitidae Occasionally coralla are found with the top and bottom surfaces but slightly damaged. These show the bottom surface to be uneven, probably a crude mold of the substratum upon which the colony grew, whereas those upper surfaces observed are very even, either nearly flat or gently convex. The upper surface of a large, nearly complete specimen may be raised into two or three gentle convexities. Most of the specimens studied are broken along the sides making it impossible to determine the complete form and dimensions. Apparently the outline of the corallum was irregular as a result of an uneven or lobate peripheral growth. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

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