A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign |
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Página 8
To the common dermal system of a colony , which , as well as the solid basis of the true polypes , was formerly known under the names of Polypary and Polypidome , I have applied the term Cćnćcium.t The cćnćcium is composed almost ...
To the common dermal system of a colony , which , as well as the solid basis of the true polypes , was formerly known under the names of Polypary and Polypidome , I have applied the term Cćnćcium.t The cćnćcium is composed almost ...
Página 11
Cćnćcium . — The Polyzoa being all composite animals , the cćnćcium constitutes essentially an assemblage of little cells or chambers , of very various form , organically connected with one another . Each chamber lodges a polypide ...
Cćnćcium . — The Polyzoa being all composite animals , the cćnćcium constitutes essentially an assemblage of little cells or chambers , of very various form , organically connected with one another . Each chamber lodges a polypide ...
Página 13
In Cristatella , where the endocyst constitutes the whole of the cćnćcium , it presents below a flattened disc , which closely resembles the foot of a gasteropodous mollusc , and on which this singular colony creeps about on the stems ...
In Cristatella , where the endocyst constitutes the whole of the cćnćcium , it presents below a flattened disc , which closely resembles the foot of a gasteropodous mollusc , and on which this singular colony creeps about on the stems ...
Página 24
... having a comparatively fixed point of attachment near the bottom of the cell , they retract the whole alimentary canal with the tentacular crown , so as to place them in a state of security in the interior of the cćnćcium . ( 2. ) ...
... having a comparatively fixed point of attachment near the bottom of the cell , they retract the whole alimentary canal with the tentacular crown , so as to place them in a state of security in the interior of the cćnćcium . ( 2. ) ...
Página 48
A comparison of the tunics of the Tunicata with the cćnćcium of the Polyzoa will render still more obvious the relations here insisted on , and show how easily the structure of the one can be explained by the study of the other .
A comparison of the tunics of the Tunicata with the cćnćcium of the Polyzoa will render still more obvious the relations here insisted on , and show how easily the structure of the one can be explained by the study of the other .
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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 cćnćcium canal 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 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 Volumen18 de ¬The Ray Society |
| Autor | George James Allman |
| Editor | Ray Society, 1856 |
| Procedencia del original | la Biblioteca Estatal de Baviera |
| Digitalizado | 13 Nov. 2009 |
| Largo | 119 páginas |
| Exportar cita | BiBTeX EndNote RefMan |