A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign |
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It is possible that some of the forms here described as distinct species may afterwards prove to be only varieties of one and the same specific group ; but as they all possess a real existence , and are truly distinct forms , it was ...
It is possible that some of the forms here described as distinct species may afterwards prove to be only varieties of one and the same specific group ; but as they all possess a real existence , and are truly distinct forms , it was ...
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... were at last , by the nearly simultaneous investigations of several naturalists , separated as a distinct group , and described by Thompson under the name of Polyzoa , and shortly after indicated by Ehrenberg under that of Bryozoa .
... were at last , by the nearly simultaneous investigations of several naturalists , separated as a distinct group , and described by Thompson under the name of Polyzoa , and shortly after indicated by Ehrenberg under that of Bryozoa .
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Not so , however , thought Jean André Peysonelle , physician at Marseilles ; he soon saw that the flowers described by Marsigli were nothing more than the beautiful starry polypes of the coral , and he maintained that these were true ...
Not so , however , thought Jean André Peysonelle , physician at Marseilles ; he soon saw that the flowers described by Marsigli were nothing more than the beautiful starry polypes of the coral , and he maintained that these were true ...
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Almost immediately after this the same species was detected in England by Baker , who subsequently described it under the name of " Bellflower animal . " Both Trembley and Baker bestowed upon their new ...
Almost immediately after this the same species was detected in England by Baker , who subsequently described it under the name of " Bellflower animal . " Both Trembley and Baker bestowed upon their new ...
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In this Memoir the author has described the locomotive embryos of Flustræ ; he also gives an account of the animals of Flustra carbasea and F. foliacea , and shows them to be quite different from ...
In this Memoir the author has described the locomotive embryos of Flustræ ; he also gives an account of the animals of Flustra carbasea and F. foliacea , and shows them to be quite different from ...
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Otras ediciones - Ver todas
A Monograph of the Fresh-water Polyzoa: Including All the Known ..., Tema 28 George James Allman Vista de fragmentos - 1856 |
A Monograph of the Fresh-Water Polyzoa, Including All the Known Species ... George James Allman Sin vista previa disponible - 2009 |
Términos y frases comunes
action adherent admit Alcyonella alimentary canal Allman already anatomy animal appearance Ascidian attached become Beneden bodies branches branchial British cavity cell character cilia closely complete condition connected consists constitutes contained continuous corresponding Cristatella described detected disc distinct Dumortier ectocyst edit endocyst entire epistome examined existence extending external extremity fibres fluid Fredericella fresh-water Polyzoa genera genus Gervais gives Hancock Hist important internal latter layer Leidy lophophore Lophopus margin mass Mém membrane memoir minute mouth muscles Natural naturalists nearly observed occur organ orifice Original figures Paludicella passes Plumatella Plumatella repens Polype polypide Polyzoon portion present published relations repens resemblance retraction retractor Rösel seen separated sheath side space species specimens statoblasts stomach stones structure surface surrounding tentacula transparent transverse Trembley true tubes Tubularia tunic Tunicata walls whole young