A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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In the preparation of the monograph no trouble has been spared to render it as
complete as possible , and the subjects of which it treats have been considered
under every point of view of which they seemed susceptible — zoographically ...
In the preparation of the monograph no trouble has been spared to render it as
complete as possible , and the subjects of which it treats have been considered
under every point of view of which they seemed susceptible — zoographically ...
Página 2
De Jussieu had here an opportunity of examining the Alcyoniums , Sertulariæ ,
Flustræ , and other flexible and plant - like productions to which the observations
of Peysonelle had not extended , and the result was a complete conviction of
their ...
De Jussieu had here an opportunity of examining the Alcyoniums , Sertulariæ ,
Flustræ , and other flexible and plant - like productions to which the observations
of Peysonelle had not extended , and the result was a complete conviction of
their ...
Página 4
... of the Sertulariæ ; but he seems as yet to have had but an imperfect knowledge
of them , and I cannot find anything in the Memoir to justify the belief that this
excellent zoologist was acquainted with the complete intestinal canal of the
animal .
... of the Sertulariæ ; but he seems as yet to have had but an imperfect knowledge
of them , and I cannot find anything in the Memoir to justify the belief that this
excellent zoologist was acquainted with the complete intestinal canal of the
animal .
Página 5
most valuable investigations into the Compound Ascidiæ , M. Edwards , without
any knowledge of the labours of Grant in the same field , not only demonstrated
in a very complete manner the anatomy of the Flustræ , but was the first to call ...
most valuable investigations into the Compound Ascidiæ , M. Edwards , without
any knowledge of the labours of Grant in the same field , not only demonstrated
in a very complete manner the anatomy of the Flustræ , but was the first to call ...
Página 11
... genus Pedicellina , complete . The attachment of the endocyst to the base of
the tentacular crown closes the cænæcial chambers externally , while the
polypide is thus suspended in the midst of the fluid with which these chambers
are filled .
... genus Pedicellina , complete . The attachment of the endocyst to the base of
the tentacular crown closes the cænæcial chambers externally , while the
polypide is thus suspended in the midst of the fluid with which these chambers
are filled .
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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 ..., Tema 28 George James Allman Vista de fragmentos - 1856 |
Términos y frases comunes
adherent admit Alcyonella alimentary canal Allman already anatomy animal appearance Ascidian attached become Beneden bodies branches branchial British cænæcium 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 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 represented 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