Carpenter, William Benjamin, 1813-1885 · Philadelphia : Blakiston · leaf 709
st come-forth, and the lateral tendrils subsequentlyuncoil themselves, to be drawn-in again and packed-up. within thecavities with almost equal suddenness. The mouth of the animal,situated at one of the poles, leads first to a quadrifid cavity boundedby four folds which seem to represent the oral…
Microscopy · Biology
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