A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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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 8
... names of Polypary and Polypidome , I have applied the term Cænæcium.f The
cænæcium is composed almost universally of two perfectly distinct tunics ; to the
external I have given the name of Ectocyst , I and to the internal that of Endocyst.
... names of Polypary and Polypidome , I have applied the term Cænæcium.f The
cænæcium is composed almost universally of two perfectly distinct tunics ; to the
external I have given the name of Ectocyst , I and to the internal that of Endocyst.
Página 13
... substance of the endocyst is the normal condition of this tunic , but from the
delicacy of these tubes , and the transparency and want of colour of their contents
, they escape detection under ordinary circumstances , and are first revealed only
...
... substance of the endocyst is the normal condition of this tunic , but from the
delicacy of these tubes , and the transparency and want of colour of their contents
, they escape detection under ordinary circumstances , and are first revealed only
...
Página 14
This gelatinous - looking investment is , however , a true ectocyst ; it consists of a
membranous tunic of great delicacy , apparently enclosing a perfectly transparent
and colourless fluid , probably in the meshes of a sort of areolar tissue .
This gelatinous - looking investment is , however , a true ectocyst ; it consists of a
membranous tunic of great delicacy , apparently enclosing a perfectly transparent
and colourless fluid , probably in the meshes of a sort of areolar tissue .
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 ...
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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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