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 14
In certain species of fresh - water Polyzoa , transverse septa exist between the
cells . ... development and constancy ; they occur here between every cell , and
consist of an annular process , which projects transversely from the ectocyst into
the ...
In certain species of fresh - water Polyzoa , transverse septa exist between the
cells . ... development and constancy ; they occur here between every cell , and
consist of an annular process , which projects transversely from the ectocyst into
the ...
Página 26
From this origin they pass transversely inwards , and are inserted into the
opposed surface of the invaginated endocyst . Their action will dilate the
invaginated endocyst , and assist in keeping it permanently inverted . ( 6. )
Posterior Parieto ...
From this origin they pass transversely inwards , and are inserted into the
opposed surface of the invaginated endocyst . Their action will dilate the
invaginated endocyst , and assist in keeping it permanently inverted . ( 6. )
Posterior Parieto ...
Página 27
5 , 6 , v ) were mentioned as entering into the composition of this tunic , and
taking a transverse direction round the cell . These may be designated by the
name of parietal muscles . They may generally be seen very distinctly towards
the ...
5 , 6 , v ) were mentioned as entering into the composition of this tunic , and
taking a transverse direction round the cell . These may be designated by the
name of parietal muscles . They may generally be seen very distinctly towards
the ...
Página 28
3 , u ) which run transversely round the invaginated tunic . I have not succeeded
in dividing it into an inferior and superior set , as described by Mr. Hancock . Its
action closes the invaginated endocyst after the retraction of the polypide . ( 5. ) ...
3 , u ) which run transversely round the invaginated tunic . I have not succeeded
in dividing it into an inferior and superior set , as described by Mr. Hancock . Its
action closes the invaginated endocyst after the retraction of the polypide . ( 5. ) ...
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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 corresponding Cristatella crown 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 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 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 | Biblioteca Nacional de Austria |
| Digitalizado | 12 Mayo 2011 |
| Largo | 119 páginas |
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