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单词 Alcyonaria
例句 Alcyonaria
A genus of fleshy Alcyonaria, its polyps somewhat resembling flowers with eight fringed rays. Webster's Unabridged Dictionary 2012-03-24T02:00:23.513Z
In some eggs, e.g. the Alcyonaria, the first nuclear divisions are effected on the first plan, i.e. they take place without at first producing any visible effect upon the protoplasm of the egg. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 "Electrostatics" to "Engis" 2011-02-06T03:00:53.093Z
Alcyonaria.—In this sub-class the zooid has very constant anatomical characters, differing in some important respects from the Actinian zooid, which has been taken as a type. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 2 "Anjar" to "Apollo"
In the zoophyte branch, class Alcyonaria, one finds the order Gorgonaria, which contains three groups: sea fans, isidian polyps, and coral polyps. Twenty Thousand Leagues Under the Sea
The only exceptions to this structure are found in the arrested or modified zooids, which occur in many of the colonial Alcyonaria. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 2 "Anjar" to "Apollo"
Sometimes, in a wider sense, applied to all the Anthozoa, expert the Alcyonaria, whether forming corals or not. Webster's Unabridged Dictionary 2012-03-24T02:00:23.513Z
This skeleton is largely composed of a number of radiating plates or septa, and it differs both in origin and structure from the calcareous skeleton of all Alcyonaria except Heliopora. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 2 "Anjar" to "Apollo"
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