A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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Página 4
Already long devoted to the study of the invertebrate animals , and just fresh from
a series of Essay towards a Natural History of the Corallines and other Marine
productions of the like kind , commonly found on the Coasts of Great Britain and ...
Already long devoted to the study of the invertebrate animals , and just fresh from
a series of Essay towards a Natural History of the Corallines and other Marine
productions of the like kind , commonly found on the Coasts of Great Britain and ...
Página 5
Cuvier had already determined a striking difference of structure between the
Sertularian Polypes and those of Alcyonium , and a third type of structure , widely
different from both , was now pointed out by M. Edwards as characterising the ...
Cuvier had already determined a striking difference of structure between the
Sertularian Polypes and those of Alcyonium , and a third type of structure , widely
different from both , was now pointed out by M. Edwards as characterising the ...
Página 6
Though the term Bryozoa had already been used by him in a number of the '
Symbolæ Physicæ , ' published in June , 1831 , the priority of publication is still
left with Thompson's name , and though Ehrenberg's term is in general use upon
the ...
Though the term Bryozoa had already been used by him in a number of the '
Symbolæ Physicæ , ' published in June , 1831 , the priority of publication is still
left with Thompson's name , and though Ehrenberg's term is in general use upon
the ...
Página 9
... thus applying to the Mollusca the terms already so happily employed by Owen
in his designation of the regions of the vertebrate skeleton . These terms have the
advantage of stating a simple fact , and of thus avoiding the ambiguity which so ...
... thus applying to the Mollusca the terms already so happily employed by Owen
in his designation of the regions of the vertebrate skeleton . These terms have the
advantage of stating a simple fact , and of thus avoiding the ambiguity which so ...
Página 11
In In every instance * the polypide can be protruded from its cell , and again
withdrawn into it , and the part through which it thus passes outwards and
inwards , as has already been defined , is the orifice of the cell . It must not ,
however , be ...
In In every instance * the polypide can be protruded from its cell , and again
withdrawn into it , and the part through which it thus passes outwards and
inwards , as has already been defined , is the orifice of the cell . It must not ,
however , be ...
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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