To establish the exact relationship it is necessary not only to breed but to rear the medusa, which cannot always be done in 1 In some cases hydroids have been reared in aquaria from ova of medusae, but these hydroids have not yet been found in the sea (Browne [Io a]). [Please select]
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Allman thus describes[79] the process in _Laomedea_, as representing the Hydroids (Pl.) [Please select]
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[79] Monograph of the Gymnoblastic or Tubularian Hydroids, by G. [Please select]
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_ Various cœlenterates, such as hydroids, hydro-medusæ, jellyfishes, sea anemones, corals, sea fans, etc. [Please select]
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GEOGRAPHICAL LIST OF THE FRESHWATER SPONGES, HYDROIDS, AND POLYZOA OF INDIA, BURMA, AND CEYLON. [Please select]
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***END OF THE PROJECT GUTENBERG EBOOK FRESHWATER SPONGES, HYDROIDS & POLYZOA*** ******* This file should be named 36504-8. [Please select]
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To the Hydroids belong the Campanularians, the Sertularians, and the Tubularians. [Please select]
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