A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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In fixing the exact limits of the species , some difficulty has been experienced . I
have however , deemed it best to describe as a distinct species every well -
marked variation of form which I could not find connected by intermediate
gradations ...
In fixing the exact limits of the species , some difficulty has been experienced . I
have however , deemed it best to describe as a distinct species every well -
marked variation of form which I could not find connected by intermediate
gradations ...
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which I could not find connected by intermediate gradations with other forms ,
and which could not , with probability , be referred to the accidental influence of
external agencies . It is possible that some of the forms here described as distinct
...
which I could not find connected by intermediate gradations with other forms ,
and which could not , with probability , be referred to the accidental influence of
external agencies . It is possible that some of the forms here described as distinct
...
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... separated as a distinct group , and described by Thompson under the name of
Polyzoa , and shortly after indicated by Ehrenberg under that of Bryozoa . They
are chiefly inhabitants of the sea , where they may be witnessed under numerous
...
... separated as a distinct group , and described by Thompson under the name of
Polyzoa , and shortly after indicated by Ehrenberg under that of Bryozoa . They
are chiefly inhabitants of the sea , where they may be witnessed under numerous
...
Página 2
Historical view of the facts which finally led to the establishment of the Polyzoa as
a distinct class . It was in the last year of the sixteenth century that the Neapolitan
, Ferante Imperato , asserted that corals possessed the nature of animals .
Historical view of the facts which finally led to the establishment of the Polyzoa as
a distinct class . It was in the last year of the sixteenth century that the Neapolitan
, Ferante Imperato , asserted that corals possessed the nature of animals .
Página 3
... 1742 , tome xvi , Preface . * ' Essay towards a Natural History of the Corallines
A DISTINCT GROUP . 3.
... 1742 , tome xvi , Preface . * ' Essay towards a Natural History of the Corallines
A DISTINCT GROUP . 3.
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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 Species ... George James Allman Sin vista previa disponible - 2009 |
Términos y frases comunes
adherent admit Alcyonella alimentary alimentary canal Allman already anatomy animal appearance Ascidian attached become Beneden bodies branches branchial British cænæcium canal cavity cell character cilia closely complete condition connected consists constitutes contained continuous 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 organs 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
Información bibliográfica
| Título | A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, George James Allman Volumen13 de DE-601)130488305: Ray Society Publications, Ray Society Ray Society, Ray Society Volumen28 de Ray society ... [Publications |
| Autor | George James Allman |
| Editor | Ray Society, 1856 |
| Procedencia del original | la Biblioteca Estatal de Baviera |
| Digitalizado | 13 Nov. 2009 |
| Largo | 119 páginas |
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