A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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Página 12
These are situated on its inner surface , where they constitute a well - marked
layer composed of a network of transverse and longitudinal fibres over the whole
extent of the endocyst . I have even succeeded in separating this network as a ...
These are situated on its inner surface , where they constitute a well - marked
layer composed of a network of transverse and longitudinal fibres over the whole
extent of the endocyst . I have even succeeded in separating this network as a ...
Página 13
In specimens of this Polyzoon which had been kept for a few days , and
occasionally in some just captured , multitudes of minute oval brilliant corpuscles
were seen to have been developed in the endocyst throughout its whole extent .
In specimens of this Polyzoon which had been kept for a few days , and
occasionally in some just captured , multitudes of minute oval brilliant corpuscles
were seen to have been developed in the endocyst throughout its whole extent .
Página 15
Upon the whole , the reactions of the pergamentaceous ectocysts of Plumatella ,
& c . , are rather in favour of this tissue being composed of chitine . It is quite
insoluble in strong acetic acid , and in a concentrated solution of caustic potash ...
Upon the whole , the reactions of the pergamentaceous ectocysts of Plumatella ,
& c . , are rather in favour of this tissue being composed of chitine . It is quite
insoluble in strong acetic acid , and in a concentrated solution of caustic potash ...
Página 17
7 , m ) ; it possesses also an undoubted cellular structure ; it admits of being
traced uninterruptedly over the whole tract of the alimentary canal , and , on the
application of acetic acid , becomes frequently raised from the subjacent layer .
7 , m ) ; it possesses also an undoubted cellular structure ; it admits of being
traced uninterruptedly over the whole tract of the alimentary canal , and , on the
application of acetic acid , becomes frequently raised from the subjacent layer .
Página 18
The whole course of the alimentary matter , from the moment of its prehension to
its final ejection , may be easily witnessed in many of the fresh - water Polyzoa . If
a polypide of Plumatella repens be watched while in an exserted state , different
...
The whole course of the alimentary matter , from the moment of its prehension to
its final ejection , may be easily witnessed in many of the fresh - water Polyzoa . If
a polypide of Plumatella repens be watched while in an exserted state , different
...
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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 canal Allman already anatomy animal appearance Ascidian attached become Beneden bodies branches branchial British cćnćcium 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
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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