Elements of zoölogy a Elements of zoölogy : a textbook elementsofzolo00tenn Year: c1875 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. 665. Plumatella. p, PUuuatellanatural size; P, Plumatella magn

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Elements of zoölogy a Elements of zoölogy : a textbook elementsofzolo00tenn Year: c1875 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. 665. Plumatella. p, PUuuatellanatural size; P, Plumatella magn
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Image ID: RWW225
Elements of zoölogy a Elements of zoölogy : a textbook elementsofzolo00tenn Year: c1875 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. 665. 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' heads.' In some * Packard and others regard the Polyzoa as worms.

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