A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Volumen28 |
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Página 6
... with the Polypes, and the Polyzoa, therefore, long continued to be classed with
the Polypes, of which they were still considered as a group, though with distinct
peculiarities, through which the Polypes manifested an affinity with the Tunicata.
... with the Polypes, and the Polyzoa, therefore, long continued to be classed with
the Polypes, of which they were still considered as a group, though with distinct
peculiarities, through which the Polypes manifested an affinity with the Tunicata.
Página 15
The fact of cellulose being a constituent of the test of the Tunicata, induced me to
look for it in the ectocyst of the Polyzoa, but I have never succeeded in obtaining
satisfactory evidence of its existence in any of the tissues of the Polyzoa, either ...
The fact of cellulose being a constituent of the test of the Tunicata, induced me to
look for it in the ectocyst of the Polyzoa, but I have never succeeded in obtaining
satisfactory evidence of its existence in any of the tissues of the Polyzoa, either ...
Página 43
One of these, the Molluscoida, included the Polyzoa and Tunicata ; the other, the
Mollusca proper, embraced all the other members of the molluscan sub-kingdom.
The affinities of the Tunicata and Polyzoa being thus fully recognised, it is of ...
One of these, the Molluscoida, included the Polyzoa and Tunicata ; the other, the
Mollusca proper, embraced all the other members of the molluscan sub-kingdom.
The affinities of the Tunicata and Polyzoa being thus fully recognised, it is of ...
Página 46
In connection with the tentacular crown, there is another part of the organization
of the Polyzoa for which we have still to find an equivalent, and which without
comparison with the Tunicata would remain inexplicable, namely the epistome of
...
In connection with the tentacular crown, there is another part of the organization
of the Polyzoa for which we have still to find an equivalent, and which without
comparison with the Tunicata would remain inexplicable, namely the epistome of
...
Página 47
Now nearly all the changes which we have thus hypothetically supposed to take
place in Clavelina, in order to convert its branchial sac into the tentacular crown
of Plumatella, do actually occur in other genera of Tunicata, some in one, and ...
Now nearly all the changes which we have thus hypothetically supposed to take
place in Clavelina, in order to convert its branchial sac into the tentacular crown
of Plumatella, do actually occur in other genera of Tunicata, some in one, and ...
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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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