Carpenter, William Benjamin, 1813-1885 · Philadelphia : Blakiston · leaf 683
mby the action of the flagella. The minute pores (Fig. 351, b, b) withwhich the surface a, a, of the living Sponge is beset, lead to incur-rent passages that open into chambers lying beneath it (c, c); andit is especially on the walls of these ampullaceous sacs, that thelagellate zooids present… … Diagrammatic section of Spongilla :—a, a, superficial layer ;b, inhalant apertures; c, c, flagellated chambers; d, exhalantoscule ; e, deeper substance of the sponge. jecting vents, d,—from each of which, during the active life of theSponge, a stream of water, carrying out excrementitious matter,is…
Microscopy · Biology
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