A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Volumen28 |
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Página 5
He then goes on to compare the walls of the body cavity in Gorgonia, his,
Alcyonium, &c., to the tunics of an Ascidian or the mantle of an ordinary Mollusc,
a comparison which plainly shows that he had no idea whatever of the relation in
...
He then goes on to compare the walls of the body cavity in Gorgonia, his,
Alcyonium, &c., to the tunics of an Ascidian or the mantle of an ordinary Mollusc,
a comparison which plainly shows that he had no idea whatever of the relation in
...
Página 8
The coenoecium is composed almost universally of two perfectly distinct tunics ;
to the external I have given the name of Ectocyst,\ and to the internal that of
Endocyst.^ The sort of disc or stage which surrounds the mouth and bears the ...
The coenoecium is composed almost universally of two perfectly distinct tunics ;
to the external I have given the name of Ectocyst,\ and to the internal that of
Endocyst.^ The sort of disc or stage which surrounds the mouth and bears the ...
Página 13
... the endocyst is the normal condition of this tunic, but from the delicacy of these
tubes, and the transparency and want of colour of their contents, they escape
detection under ordinary circumstances, and are first revealed only by the
abnormal ...
... the endocyst is the normal condition of this tunic, but from the delicacy of these
tubes, and the transparency and want of colour of their contents, they escape
detection under ordinary circumstances, and are first revealed only by the
abnormal ...
Página 14
This gelatinous-looking investment is, however, a true ectocyst ; it consists of a
membranous tunic of great delicacy, apparently enclosing a perfectly transparent
and colourless fluid, probably in the meshes of a sort of areolar tissue. I have not
...
This gelatinous-looking investment is, however, a true ectocyst ; it consists of a
membranous tunic of great delicacy, apparently enclosing a perfectly transparent
and colourless fluid, probably in the meshes of a sort of areolar tissue. I have not
...
Página 27
5, 6, v) were mentioned as entering into the composition of this tunic, and taking a
transverse direction round the cell. These may be designated by the name of
parietal muscles. They may generally be seen very distinctly towards the anterior
...
5, 6, v) were mentioned as entering into the composition of this tunic, and taking a
transverse direction round the cell. These may be designated by the name of
parietal muscles. They may generally be seen very distinctly towards the anterior
...
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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 cavity cell character.—Coenoecium cilia coenoecium crescentic Cristatella Cristatella mucedo d'eau douce described Difflugia disc distinct Dumortier ectocyst embryo endocyst epistome exserted external fibres flabellum fluid Flustrae fresh-water Polyzoa funiculus ganglion gemmae genera genus Gervais Hancock Hist homologous intestine invaginated l'Acad Lamarck layer Leidy longitudinal lophophore Lophopus crystallinus magnified margin membrane memoir Meyen mouth Naisa naturalists observed oesophagus organs orifice Original figures ovary ovum Pallas Paludicella parieto-vaginal muscles peculiar Pedicellina perigastric space Plumatella repens Polype a Panache polypide Polyzoon portion posterior present Raspail resemblance respiratory retraction retractor retractor muscles Rosel seen septa side 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 Volumen13 de DE-601)130488305: Ray Society Tema 28 de Publications, Ray Society Ray Society, Ray Society Volumen28 de Ray society ... [Publications |
| Autor | George James Allman |
| Editor | Ray Society, 1856 |
| Procedencia del original | la Biblioteca Estatal de Baviera |
| Digitalizado | 13 Nov. 2009 |
| Largo | 119 páginas |
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