A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign |
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Página 59
Rosel has here evidently seen the tentacular sheath in a semi-everted state, in
which it presents somewhat the appearance he has described; and believing this
to be a permanent character of his polype, has been thus led into error. He has ...
Rosel has here evidently seen the tentacular sheath in a semi-everted state, in
which it presents somewhat the appearance he has described; and believing this
to be a permanent character of his polype, has been thus led into error. He has ...
Página 70
The digestive apparatus was also described, as well as the muscles which act on
the alimentary canal and invaginated tunic; it was shown that the latter muscles
consisted of two distinct sets, an anterior and a posterior, whose peculiar ...
The digestive apparatus was also described, as well as the muscles which act on
the alimentary canal and invaginated tunic; it was shown that the latter muscles
consisted of two distinct sets, an anterior and a posterior, whose peculiar ...
Página 71
The ciliated embryos of Alcyonella are also described and figured, but the
authors do not pursue their development into much detail, while they consider
them as identical with statoblasts in a particular stage of evolution, and deprived
of their ...
The ciliated embryos of Alcyonella are also described and figured, but the
authors do not pursue their development into much detail, while they consider
them as identical with statoblasts in a particular stage of evolution, and deprived
of their ...
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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 Sin vista previa disponible - 2016 |
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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