A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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Página 34
Towards the opening which leads from without into the central cavity the
chorization is incomplete , the membrane as it separates being here still held to
the walls of the cavity by irregular transverse bands ; these bands check the
entire ...
Towards the opening which leads from without into the central cavity the
chorization is incomplete , the membrane as it separates being here still held to
the walls of the cavity by irregular transverse bands ; these bands check the
entire ...
Página 36
The polypide is now seen to be suspended from the wall of the cell by a
membranous sac . ... fibres , the rudiments of the retractor of the polypide , may
now be plainly seen extending from just behind the lophophore to the walls of the
cell .
The polypide is now seen to be suspended from the wall of the cell by a
membranous sac . ... fibres , the rudiments of the retractor of the polypide , may
now be plainly seen extending from just behind the lophophore to the walls of the
cell .
Página 52
The walls of this cavity are at first in close apposition with those of the thoracic
chamber , which completely encloses it , so that the two cavities at this stage
appear as one , being exactly co - extensive ; we soon perceive , however , that
the ...
The walls of this cavity are at first in close apposition with those of the thoracic
chamber , which completely encloses it , so that the two cavities at this stage
appear as one , being exactly co - extensive ; we soon perceive , however , that
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 |
Términos y frases comunes
adherent admit Alcyonella alimentary alimentary canal Allman already anatomy animal appearance Ascidian attached become Beneden bodies branches branchial British canal cavity cell characters 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 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 | Universidad de Michigan |
| Digitalizado | 13 Feb. 2012 |
| Largo | 119 páginas |
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