Carpenter, William Benjamin, 1813-1885 · Philadelphia : Blakiston · leaf 690
l spicule or dart is projected into its substance,probably conveying into it a poisonous fluid secreted by a vesicleat its base. The latter inference is founded upon the oft-re-peated observation, that if the living prey seized by the tentacleshave a body destitute of hard integument, as is the… … Hydra fusca, with a young bud at Z>, and amore advanced bud at c. 612 HYDEOID ZOOPHYTES. Entomostraca, Insects, and other animals with hard envelopes, may-escape without injury, even after having been detained for sometime in the polypes embrace. The contractility of the tentacles(the interior…
Microscopy · Biology
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