A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign |
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Página 13
They were not scattered at random through this membrane, but were contained in
the interior of a system of tubes which formed a network in the substance of the
endocyst (Pl. II, fig. 13). They are about the ,3',-,,th of an inch in the longer ...
They were not scattered at random through this membrane, but were contained in
the interior of a system of tubes which formed a network in the substance of the
endocyst (Pl. II, fig. 13). They are about the ,3',-,,th of an inch in the longer ...
Página 89
When removed from the water, the polypides shrink back into their cells, and the
surface then seems covered with a gelatinous investment, caused by the soft,
papilla-like, extremities of -the tubes. These extremities contract no adhesion ...
When removed from the water, the polypides shrink back into their cells, and the
surface then seems covered with a gelatinous investment, caused by the soft,
papilla-like, extremities of -the tubes. These extremities contract no adhesion ...
Página 90
The tubes are closely adherent to one another until within a short distance of their
terminations, when they become free. The ectocyst is dark brown, becoming
rather abruptly lighter in the vicinity of the orifices, where the peculiar
characteristic ...
The tubes are closely adherent to one another until within a short distance of their
terminations, when they become free. The ectocyst is dark brown, becoming
rather abruptly lighter in the vicinity of the orifices, where the peculiar
characteristic ...
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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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