A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Volumen28 |
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Página 28
or anterior to them when the tube is evaginated during the exserted state of the
polypide. The marine Polyzoa certainly afford an analogy for the existence of
these muscles; but, though I have carefully sought for them in Paludicella, I have
not ...
or anterior to them when the tube is evaginated during the exserted state of the
polypide. The marine Polyzoa certainly afford an analogy for the existence of
these muscles; but, though I have carefully sought for them in Paludicella, I have
not ...
Página 29
Let us suppose the polypide withdrawn into the recesses of the cell, and that
hunger or some other stimulus impresses on it a desire of protrusion. The
endocyst now contracts on the perigastric fluid, which, pressing on the polypide,
forces it ...
Let us suppose the polypide withdrawn into the recesses of the cell, and that
hunger or some other stimulus impresses on it a desire of protrusion. The
endocyst now contracts on the perigastric fluid, which, pressing on the polypide,
forces it ...
Página 36
It is the rudimental polypide, and we soon find in it a cavity, which is to become
that of the tentacular sheath, within which, when viewed in front, may be seen an
oval ring (fig. 5) which is afterwards to become the lophophore of the polypide.
It is the rudimental polypide, and we soon find in it a cavity, which is to become
that of the tentacular sheath, within which, when viewed in front, may be seen an
oval ring (fig. 5) which is afterwards to become the lophophore of the polypide.
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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 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 coenoecium crescentic Cristatella Cristatella mucedo d'eau douce described disc distinct Dumortier ectocyst embryo endocyst epistome exserted external fibres flabellum fluid Flustrae fresh-water Polyzoa funiculus ganglion gemmae genera genus Gervais Hancock hippocrepian Hist homologous intestine invaginated l'Acad Lamarck layer Leidy longitudinal lophophore Lophopus crystallinus margin Mém membrane memoir Meyen mouth Müller Naisa naturalists observed oesophagus organ orifice Original figures ovary ovum Pallas 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 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
Información bibliográfica
| Título | A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Volumen28 A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, George James Allman 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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