A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign |
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Página 4
In this Memoir the author has described the locomotive embryos of Flustrć ; he also gives an account of the animals of Flustra carbasea and F. foliacea , and shows them to be quite different ...
In this Memoir the author has described the locomotive embryos of Flustrć ; he also gives an account of the animals of Flustra carbasea and F. foliacea , and shows them to be quite different ...
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 ...
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 ...
Página 9
... 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 former region the name of “ hćmal ...
... 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 former region the name of “ hćmal ...
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 ...
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 ...
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 ...
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 ...
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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 |