- Zooecia, long and coherent, prismatic or cylindrical, with terminal orifices, their wall thin and simple in structure proximally, thickened and complicated distally. [Please select]
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This structure may readily be seen in a large proportion of the zooecia of transparent species. [Please select]
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It seems also that old zooecia and polypides are sometimes transformed into buds of the kind (fig.) [Please select]
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All the phylactolæmata produce, within their zooecia, the bodies known as statoblasts. [Please select]
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_Polyparium_ The whole body of zooecia and polypides which are in organic connection. [Please select]
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_Zoarium_ The whole body of zooecia which are in organic connection. [Please select]
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_ The zooecia are provided with a "lip" or lid hinged to the posterior margin of the orifice (see fig.) [Please select]
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The zooecia are usually more or less tubular, but in some genera and species are flattened. [Please select]
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A precisely similar function, so far as the support of the sponge is concerned, is fulfilled by the tubular zooecia of a phase of the polyzoon _Plumatella fruticosa_ (see p.) [Please select]
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In the great majority of cases the polyzoa form permanent colonies or polyparia, each of which consists of a number of individual zooecia and polypides connected together by threads of living tissue. [Please select]
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