A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign |
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Página 36
This cavity is at first filled with clear, round bodies, having ahigh refracting power,
but in which I could not trace the double outline of a true cell-wall. The polypide is
now seen to be suspended from the wall of the cell by a membranous sac.
This cavity is at first filled with clear, round bodies, having ahigh refracting power,
but in which I could not trace the double outline of a true cell-wall. The polypide is
now seen to be suspended from the wall of the cell by a membranous sac.
Página 37
12), and it is now evident that the lophophore has begun to develop itself from its
walls, and that the triangular space corresponds to the interval between the two
arms of the rudimental lophophore. By this time the young polypide has become
...
12), and it is now evident that the lophophore has begun to develop itself from its
walls, and that the triangular space corresponds to the interval between the two
arms of the rudimental lophophore. By this time the young polypide has become
...
Página 52
The walls of this cavity are at first in close apposition with those of the thoracic
chamber, which completely encloses it, so that the two cavities at this stage
appear as one, being exactly co-extensive; we soon perceive, however, that the
proper ...
The walls of this cavity are at first in close apposition with those of the thoracic
chamber, which completely encloses it, so that the two cavities at this stage
appear as one, being exactly co-extensive; we soon perceive, however, that the
proper ...
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A Monograph of the Fresh-water Polyzoa: Including All the Known ..., Volumen28 George James Allman Vista de fragmentos - 1856 |
Términos y frases comunes
adherent Alcyonella alimentary canal Allman anatomical animal annulus Ascidian attached become Beneden branches branchial sac Brit Brux campanulata cavity cell cilia coenoecium confined crescentic Cristatella mucedo d’eau douce described disc distinct Dumortier ectocyst embryo endocyst epistome exserted external fibres fig filament filled find first floating fluid Flustrae Fredericella fresh-water Polyzoa funiculus ganglion gemma genera genus Gervais Hancock hippocrepian Hist homologous intestine invaginated l’Acad Lamarck layer Leidy Lop/zopus lophophore Lophopus magnified margin Mém membrane memoir Meyen Miiller mouth Naisa naturalists observed oesophagus orifice Original figures ovary ovum Paludicella peculiar Pedicellina perigastric space Plumatella repens Polype Polype a Panache polypide Polyzoon portion posterior present Raspail respiratory retraction retractor retractor muscles Rosel seen septa side sinus species specific specimens statoblasts stomach structure sultana surface tentacles tentacula tentacular crown tentacular sheath thoracic chamber transparent transverse Trembley tubes Tubularia repens tunic Tunicata Urnatella walls Zooph
Información bibliográfica
| Título | A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign Ray Society Publications, Publications 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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