A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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Página 3
It consisted of a lobed jelly - like mass , from which protruded numerous polypoid
bodies , each characterised by the possession of an elegant crown of tentacula
borne on the margin of a crescent - shaped disc . This beautiful tentacular plume
...
It consisted of a lobed jelly - like mass , from which protruded numerous polypoid
bodies , each characterised by the possession of an elegant crown of tentacula
borne on the margin of a crescent - shaped disc . This beautiful tentacular plume
...
Página 5
He then goes on to compare the walls of the body cavity in Gorgonia , Isis ,
Alcyonium , & c . , to the tunics of an Ascidian or the mantle of an ordinary Mollusc
, a comparison which plainly shows that he had no idea whatever of the relation
in ...
He then goes on to compare the walls of the body cavity in Gorgonia , Isis ,
Alcyonium , & c . , to the tunics of an Ascidian or the mantle of an ordinary Mollusc
, a comparison which plainly shows that he had no idea whatever of the relation
in ...
Página 11
... the power of protrusion and retraction is very imperfect , and is here limited to
such change of position as is connected with a slight extension and flexion of the
wesophagus . consist almost entirely of bodies exactly resembling the nuclei of
11.
... the power of protrusion and retraction is very imperfect , and is here limited to
such change of position as is connected with a slight extension and flexion of the
wesophagus . consist almost entirely of bodies exactly resembling the nuclei of
11.
Página 12
consist almost entirely of bodies exactly resembling the nuclei of the cells ; some
of these intercellular nuclei contain two nucleoli , and seem to be undergoing
division , while round others a young cell may be seen in various stages of ...
consist almost entirely of bodies exactly resembling the nuclei of the cells ; some
of these intercellular nuclei contain two nucleoli , and seem to be undergoing
division , while round others a young cell may be seen in various stages of ...
Página 13
The situation of these bodies in a tubular network in the substance of the
endocyst is a fact of great interest . It is nearly certain that whatever may have
been the origin of the corpuscles , they found the tubes already existing for their
reception .
The situation of these bodies in a tubular network in the substance of the
endocyst is a fact of great interest . It is nearly certain that whatever may have
been the origin of the corpuscles , they found the tubes already existing for their
reception .
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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 ..., Tema 28 George James Allman Vista de fragmentos - 1856 |
Términos y frases comunes
adherent admit Alcyonella alimentary canal Allman already anatomy animal appearance Ascidian attached become Beneden bodies branches branchial British cænæcium 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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