A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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Página 16
Its margin is slightly elevated , and is continuous on the neural side , with a
hollow 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 of
certain ...
Its margin is slightly elevated , and is continuous on the neural side , with a
hollow 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 of
certain ...
Página 35
The unciliated portion is now no longer capable of being withdrawn within the
ciliated , with which it has become directly continuous , while the cilia themselves
disappear from the ciliated portion , and the entire sac becomes enveloped ...
The unciliated portion is now no longer capable of being withdrawn within the
ciliated , with which it has become directly continuous , while the cilia themselves
disappear from the ciliated portion , and the entire sac becomes enveloped ...
Página 56
From this the blood passes into all the tentacles , and may be seen as a
continuous stream flowing towards their extremities . When it arrives there , it
takes a retrograde course , flowing back again through the same channel into the
cavity of ...
From this the blood passes into all the tentacles , and may be seen as a
continuous stream flowing towards their extremities . When it arrives there , it
takes a retrograde course , flowing back again through the same channel into the
cavity of ...
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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 canal Allman already anatomy animal appearance Ascidian attached become Beneden bodies branches branchial British cavity cell characters 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 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 similar 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 | Universidad de Michigan |
| Digitalizado | 13 Feb. 2012 |
| Largo | 119 páginas |
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