A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign |
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... and the subjects of which it treats have been considered under every point of view of which they seemed susceptible - zoographically , zootomically , homologically , and historically . Nearly every species has been ...
... and the subjects of which it treats have been considered under every point of view of which they seemed susceptible - zoographically , zootomically , homologically , and historically . Nearly every species has been ...
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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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The announcement had passed away nearly unheeded ; and if at the end of more than a hundred years afterwards any lingering doubts as to the vegetability of these productions still remained , it was deemed that the discovery of the Count ...
The announcement had passed away nearly unheeded ; and if at the end of more than a hundred years afterwards any lingering doubts as to the vegetability of these productions still remained , it was deemed that the discovery of the Count ...
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... however , whose significance was destined to remain for nearly a century unrecognised , and it was not until a similar one in certain marine polypoid animals arrested the attention of naturalists , that its importance , and its true ...
... however , whose significance was destined to remain for nearly a century unrecognised , and it was not until a similar one in certain marine polypoid animals arrested the attention of naturalists , that its importance , and its true ...
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The determination of the structure of certain marine Polyzoa by the independent and nearly simultaneous labours of Grant , Edwards , and Thompson ; and the recognition of the affinity of these productions with the compound Ascidians by ...
The determination of the structure of certain marine Polyzoa by the independent and nearly simultaneous labours of Grant , Edwards , and Thompson ; and the recognition of the affinity of these productions with the compound Ascidians by ...
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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