A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign |
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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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
... 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 ...
Página 11
In every instance * the polypide can be protruded from its cell , and again withdrawn into it , and the part through which it thus passes outwards and inwards , as has already been defined , is the orifice of the cell .
In every instance * the polypide can be protruded from its cell , and again withdrawn into it , and the part through which it thus passes outwards and inwards , as has already been defined , is the orifice of the cell .
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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