A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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Página 12
In Paludicella , whose transparent ectocyst admits of a distinct view of all the
contained parts , the fibres are collected into numerous transverse bands ( Pl . X ,
figs . 3 , 4 , v ) , which we may trace throughout the whole extent of the cell . 1 1 1
1 ...
In Paludicella , whose transparent ectocyst admits of a distinct view of all the
contained parts , the fibres are collected into numerous transverse bands ( Pl . X ,
figs . 3 , 4 , v ) , which we may trace throughout the whole extent of the cell . 1 1 1
1 ...
Página 14
M. Dumortier mentions it , and represents it in his figure , * while M. Van Beneden
believes it to be an accidental investment acquired by the animal during
confinement . † The ectocyst in Paludicella is formed of a smooth
pergamentaceous ...
M. Dumortier mentions it , and represents it in his figure , * while M. Van Beneden
believes it to be an accidental investment acquired by the animal during
confinement . † The ectocyst in Paludicella is formed of a smooth
pergamentaceous ...
Página 15
... these we shall therefore consider together ; Paludicella , which , with the
exception of Urnatella ( ? ) , is the only fresh - water representative of the division
with orbicular lophophore ( Gymnolćmata ) , presents some peculiarities , and
should ...
... these we shall therefore consider together ; Paludicella , which , with the
exception of Urnatella ( ? ) , is the only fresh - water representative of the division
with orbicular lophophore ( Gymnolćmata ) , presents some peculiarities , and
should ...
Página 17
In Paludicella articulata , the mouth ( Pl . X , fig . 5 ) is a perfectly circular orifice ,
with slightly projectile margin , and is totally destitute of the valve - like
appendage which , unless Urnatella should prove an exception , is found in all
the other ...
In Paludicella articulata , the mouth ( Pl . X , fig . 5 ) is a perfectly circular orifice ,
with slightly projectile margin , and is totally destitute of the valve - like
appendage which , unless Urnatella should prove an exception , is found in all
the other ...
Página 18
In Paludicella however , the stomach in the immediate neighbourhood of the
pyloric orifice is lined with long vibratile cilia ( Pl . X , figs . 3 , 4 ) , by which
portions of alimentary matter , pushed onwards by the peristaltic contractions of
the ...
In Paludicella however , the stomach in the immediate neighbourhood of the
pyloric orifice is lined with long vibratile cilia ( Pl . X , figs . 3 , 4 ) , by which
portions of alimentary matter , pushed onwards by the peristaltic contractions of
the ...
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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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