A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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Página 12
For reasons to be presently mentioned , it is highly probable that the endocyst is
pervaded by a system of canals of extreme delicacy , which constitute an
irregular network in its substance . Besides the structure now described , peculiar
fibres ...
For reasons to be presently mentioned , it is highly probable that the endocyst is
pervaded by a system of canals of extreme delicacy , which constitute an
irregular network in its substance . Besides the structure now described , peculiar
fibres ...
Página 28
The action of the anterior parieto - vaginal muscles assists in the invagination of
the tube , and dilates it when completely retracted ; they thus act as antagonistic
to the vaginal sphincter , while the posterior fibres will check the complete ...
The action of the anterior parieto - vaginal muscles assists in the invagination of
the tube , and dilates it when completely retracted ; they thus act as antagonistic
to the vaginal sphincter , while the posterior fibres will check the complete ...
Página 30
The fibres of the great retractor muscle are distinctly marked with transverse striæ
, a condition , however , which is not at all times equally perceptible ; and some of
our best observers have denied to the Polyzoa the existence of striated fibre .
The fibres of the great retractor muscle are distinctly marked with transverse striæ
, a condition , however , which is not at all times equally perceptible ; and some of
our best observers have denied to the Polyzoa the existence of striated fibre .
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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 alimentary canal Allman already anatomy animal appearance Ascidian attached become Beneden bodies branches branchial British canal cavity cell character cilia closely complete condition connected consists constitutes contained continuous 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 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 Illinois en Urbana-Champaign |
| Digitalizado | 13 Oct. 2015 |
| Largo | 119 páginas |
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