A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
Dentro del libro
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Página 14
... cell in Bowerbankia and other ctenostomatous Polyzoa ; if these setæ were reduced in number to four , and instead of being free were attached along their entire length to the sides of the cell , they would at once be converted into the ...
... cell in Bowerbankia and other ctenostomatous Polyzoa ; if these setæ were reduced in number to four , and instead of being free were attached along their entire length to the sides of the cell , they would at once be converted into the ...
Página 15
... cells . In Alcyonella fungosa , and in Fredericella sultana , imperfect septa may here and there be observed , while Cristatella and Lophopus would seem to be quite deprived of them , the cells in these genera all opening into one ...
... cells . In Alcyonella fungosa , and in Fredericella sultana , imperfect septa may here and there be observed , while Cristatella and Lophopus would seem to be quite deprived of them , the cells in these genera all opening into one ...
Página 16
... cell , to be in a constant motion , which consists in an alternate elevation and depression of the organ . The elevation is effected by distinct muscular fibres ( n ) , which are visible through the transparent walls , and will be ...
... cell , to be in a constant motion , which consists in an alternate elevation and depression of the organ . The elevation is effected by distinct muscular fibres ( n ) , which are visible through the transparent walls , and will be ...
Página 17
... cells with brown contents being manifestly true secreting cells , destined for the elaboration of the bile , and capable of being set free by the rupture of the cell which encloses them . This layer passes externally into a more compact ...
... cells with brown contents being manifestly true secreting cells , destined for the elaboration of the bile , and capable of being set free by the rupture of the cell which encloses them . This layer passes externally into a more compact ...
Página 18
... cells of the internal layer corresponding to the middle layer of the stomach are large , and filled , in the well - fed animal , with a clear greenish - blue fluid . With the exception of the mouth and upper portion of the œsophagus ...
... cells of the internal layer corresponding to the middle layer of the stomach are large , and filled , in the well - fed animal , with a clear greenish - blue fluid . With the exception of the mouth and upper portion of the œsophagus ...
Otras ediciones - Ver todas
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 Alcyonella Alcyonella fungosa Alcyonella stagnorum alimentary canal Allman anatomy animal annulus Ascidian attached become Beneden Bowerbankia Brachiopoda branches branchial sac Brit Brux campanulata cavity cell cilia crescentic Cristatella Cristatella mucedo d'eau douce described Difflugia disc distinct Dumortier ectocyst Ehrenbergi embryo endocyst epistome exserted external fibres flabellum fluid fresh-water Polyzoa funiculus ganglion genera genus Gervais hæmal Hancock hippocrepian Hist homologous intestine invaginated l'Acad Lamarck layer Leidy Linnæus longitudinal lophophore Lophopus crystallinus margin Mém membrane memoir Meyen mouth Müller Naisa naturalists observed oesophagus organ orifice Original figures ovary ovum Paludicella parieto-vaginal muscles peculiar Pedicellina perigastric space Plumatella repens Polype à Panache polypide Polyzoon portion posterior present Raspail respiratory retraction retractor retractor muscles Rösel seen septa side species specimens statoblasts stomach structure surface tentacles tentacula tentacular crown tentacular sheath thoracic chamber transparent transverse Trembley tubes Tubularia repens tunic Tunicata Urnatella walls Zooph