. Elements of zoölogy : a textbook. Zoology. SECTION VII. THE CLASS OF POLYZOA OR BRYOZOA OR MOSS-LIKE MOLLUSKS.* THE Bryozoa are small or minute mollusks growing in clusters, and are exceedingly plant-like in their general appearance. Some kinds belong to the sea, and are found upon rocks, shells, and seaweeds. Others are confined to fresh water ponds and streams, and are found attached to sticks, and sunken logs, and to rocks and other bodies be- neath the surface of the water. FIG. Plumatella. p, PUuuatellanatural size; P, Plumatella magnified; i, termination of the intestine. One of


. Elements of zoölogy : a textbook. Zoology. SECTION VII. THE CLASS OF POLYZOA OR BRYOZOA OR MOSS-LIKE MOLLUSKS.* THE Bryozoa are small or minute mollusks growing in clusters, and are exceedingly plant-like in their general appearance. Some kinds belong to the sea, and are found upon rocks, shells, and seaweeds. Others are confined to fresh water ponds and streams, and are found attached to sticks, and sunken logs, and to rocks and other bodies be- neath the surface of the water. FIG. Plumatella. p, PUuuatellanatural size; P, Plumatella magnified; i, termination of the intestine. One of the most remarkable tilings in the structure of the marine bryozoa is that called " birds' ; In some * Packard and others regard the Polyzoa as 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 Tenney, Sanborn, 1827-1877. New York : Scribner


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