A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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Página 4
In March , 1827 , Professor Grant read before the Wernerian Society a Memoir on
the structure of Flustræ.f In this Memoir the author has described the locomotive
embryos of Flustræ ; he also gives an account of the animals of Flustra carbasea
...
In March , 1827 , Professor Grant read before the Wernerian Society a Memoir on
the structure of Flustræ.f In this Memoir the author has described the locomotive
embryos of Flustræ ; he also gives an account of the animals of Flustra carbasea
...
Página 7
To give , however , more actuality to our ideal Polyzoon , we may bear in mind
that the immediately investing sac has the power , in almost every case , of
secreting from its external surface a secondary investment of very various
constitution in ...
To give , however , more actuality to our ideal Polyzoon , we may bear in mind
that the immediately investing sac has the power , in almost every case , of
secreting from its external surface a secondary investment of very various
constitution in ...
Página 9
... rejects the terms dorsal and ventral altogether ; generalising the Molluscan
form under the conception of an ideal archetype , and finding the heart occupying
one side , and the great nervous centres placed upon the opposite , he gives to
the ...
... rejects the terms dorsal and ventral altogether ; generalising the Molluscan
form under the conception of an ideal archetype , and finding the heart occupying
one side , and the great nervous centres placed upon the opposite , he gives to
the ...
Página 13
The perfectly transparent wide origin of this line gives to the orifice of the cell the
appearance of having a deep notch on one side . In Fredericella a slightly
prominent keel is also apparent , but the notch - like transparent space does not
here ...
The perfectly transparent wide origin of this line gives to the orifice of the cell the
appearance of having a deep notch on one side . In Fredericella a slightly
prominent keel is also apparent , but the notch - like transparent space does not
here ...
Página 19
I have had an opportunity of carefully examining this Polyzoon , and as it is
constructed on a plan quite peculiar , and may tend to throw light on the
morphology of other types , it may not be out of place to give a description of it
here .
I have had an opportunity of carefully examining this Polyzoon , and as it is
constructed on a plan quite peculiar , and may tend to throw light on the
morphology of other types , it may not be out of place to give a description of it
here .
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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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