A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign |
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Página 12
... on its inner surface , where they constitute a well - marked layer composed of a network of transverse and longitudinal fibres over the whole extent of the endocyst . I have even succeeded in separating this network as a continuous ...
... on its inner surface , where they constitute a well - marked layer composed of a network of transverse and longitudinal fibres over the whole extent of the endocyst . I have even succeeded in separating this network as a continuous ...
Página 16
Its margin is slightly elevated , and is continuous on the neural side , with a hol ow valve - like organ ( e ) of very peculiar formation . This organ arches over the mouth , and may be aptly enough compared in shape to the epiglottis ...
Its margin is slightly elevated , and is continuous on the neural side , with a hol ow valve - like organ ( e ) of very peculiar formation . This organ arches over the mouth , and may be aptly enough compared in shape to the epiglottis ...
Página 19
... is extended into two long triangular lobes or arms , so as to cause the lophophore in these genera to present the form of a deep crescent , round whose entire margin the tentacula are borne in one continuous . series .
... is extended into two long triangular lobes or arms , so as to cause the lophophore in these genera to present the form of a deep crescent , round whose entire margin the tentacula are borne in one continuous . series .
Página 21
The hepatic layer , which , in other Polyzoa , forms a continuous lining extending over nearly the whole of the internal surface of the stomach , is here confined to the anterior portion of this sac , in the space between the cardiac ...
The hepatic layer , which , in other Polyzoa , forms a continuous lining extending over nearly the whole of the internal surface of the stomach , is here confined to the anterior portion of this sac , in the space between the cardiac ...
Página 25
5 , q ) . to which attention was first directed by Van Beneden , and which may be observed running from below upwards upon the margin of the lophophore ; these bands are continuous with one another below , and when they arrive at the ...
5 , q ) . to which attention was first directed by Van Beneden , and which may be observed running from below upwards upon the margin of the lophophore ; these bands are continuous with one another below , and when they arrive at 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
action adherent admit Alcyonella alimentary canal Allman already anatomy animal appearance Ascidian attached become Beneden bodies branches branchial British 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 Hancock 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 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 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 |