File:Cordylophora caspia, portion of a female colony (from Allman, 1872).png

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Description
English: Cordylophora caspia (=Cordylophora lacustris; Hydrozoa: Anthoathecatae: Filifera: Oceaniidae), a portion of a female colony:
    • a – very young gonophore;
    • b – gonophore more advanced, containing ova, which are embraced by the branches of a ramified spadix, and have their germinal vesicles distinct;
    • c – gonophore still further advanced; the ramifications of the spadix have disappeared, and the segmentation of the vitellus has been completed in the ova;
    • d – further stage of development, in which the ova have become planulae, and are ready to escape from the gonophore;
    • e – the gonophore has become ruptured at the summit, and the ciliated planulae are escaping into the surrounding water.
Date
Source Allman G. J. The Monograph of the Gymnoblastic or Tubularian Hydroids. – Conclusion of Part I and Part II. – London: Robert Hardwicke, 1972. – Plate III
Author
George James Allman  (1812–1898)  wikidata:Q744703 s:en:Author:George James Allman
 
George James Allman
Alternative names
G.J.Allman; George Allman; George J. Allman
Description British botanist, zoologist, university teacher and ecologist
Date of birth/death 1812 Edit this at Wikidata 24 November 1898 Edit this at Wikidata
Location of birth/death Cork Parkstone
Authority file
creator QS:P170,Q744703
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current20:03, 1 September 2014Thumbnail for version as of 20:03, 1 September 20142,400 × 3,300 (2.55 MB)Mithril=={{int:filedesc}}== {{Information |Description = {{en|1=''Cordylophora caspia'' (=''Cordylophora lacustris''; Hydrozoa: Anthoathecatae: Filifera: Oceaniidae), a portion of a female colony: ** '''a''' – very young gonophore; ** '''b''' – gonophore...

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