A Monograph of the Freshwater Polyzoa, Including All the Known Species, Both British and Foreign |
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Página 27
Retractor Muscle of the Polypide. This (Pl. X, figs. 3, 4, n) resembles in
attachments and use the corresponding muscle in the other species, but is not so
distinctly divided into two separate fasciculi. (2.) Anterior Parieto-vaginal Muscles.
Retractor Muscle of the Polypide. This (Pl. X, figs. 3, 4, n) resembles in
attachments and use the corresponding muscle in the other species, but is not so
distinctly divided into two separate fasciculi. (2.) Anterior Parieto-vaginal Muscles.
Página 28
... carefully sought for them in Paludicella, I have not succeeded in detecting them
here as distinct fasciculi, and I prefer viewing the “superior tube-retractors” of
Hancock as some of the posterior fibres of the anterior parieto-vaginal muscles.
... carefully sought for them in Paludicella, I have not succeeded in detecting them
here as distinct fasciculi, and I prefer viewing the “superior tube-retractors” of
Hancock as some of the posterior fibres of the anterior parieto-vaginal muscles.
Página 30
longer pressed upon by the contraction of the endocyst, the great retractor
muscles act directly on the polypide and withdraw it into the cell, the anterior and
posterior parietovaginal muscles in Paludicella drawing after it as it descends
that ...
longer pressed upon by the contraction of the endocyst, the great retractor
muscles act directly on the polypide and withdraw it into the cell, the anterior and
posterior parietovaginal muscles in Paludicella drawing after it as it descends
that ...
Página 34
At the same time, the alimentary canal, represented at first by a single small
cavity, hollowed out in the body of the polypide, is undergoing development, and
oesophagus, stomach, and intestine begin to be distinguishable. The great
retractor ...
At the same time, the alimentary canal, represented at first by a single small
cavity, hollowed out in the body of the polypide, is undergoing development, and
oesophagus, stomach, and intestine begin to be distinguishable. The great
retractor ...
Página 36
This sac is closely adherent to the polypide behind the lophophore, but upon the
lophophore and tentacula it has become free, and here constitutes the tentacular
sheath. Some delicate fibres, the rudiments of the retractor of the polypide, may ...
This sac is closely adherent to the polypide behind the lophophore, but upon the
lophophore and tentacula it has become free, and here constitutes the tentacular
sheath. Some delicate fibres, the rudiments of the retractor of the polypide, may ...
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A Monograph of the Fresh-water Polyzoa: Including All the Known ..., Volumen28 George James Allman Vista de fragmentos - 1856 |
A Monograph of the Fresh-water Polyzoa: Including All the Known Species ... George James Allman Vista de fragmentos - 1856 |
Términos y frases comunes
adherent admit Alcyonella alimentary alimentary canal Allman already anatomy animal appearance attached become Beneden bodies branches branchial British canal cavity cell characters cilia closely coenoecium 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 organ orifice Original figures Paludicella passes Plumatella Plumatella repens Polype polypide Polyzoon portion present published relations repens resemblance retraction retractor 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 Freshwater 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 |
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