A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
Dentro del libro
Resultados 6-10 de 12
Página 48
... Tunicata three distinct envelopes , which , however , may be variously united with one another in the different genera . Now all these have their homologues in the Polyzoa ; the external sac or test of the Tunicata corresponds to the ...
... Tunicata three distinct envelopes , which , however , may be variously united with one another in the different genera . Now all these have their homologues in the Polyzoa ; the external sac or test of the Tunicata corresponds to the ...
Página 49
... Tunicata united ; and the point where the rectum opens externally in the Polyzoa is not therefore , as supposed by Van Beneden and others , the homologue of the cloacal orifice in the Tunicata with the cloacal chamber itself become ...
... Tunicata united ; and the point where the rectum opens externally in the Polyzoa is not therefore , as supposed by Van Beneden and others , the homologue of the cloacal orifice in the Tunicata with the cloacal chamber itself become ...
Página 50
... Tunicata , and therefore comes to be situated on the polypide itself , all whose motions it then necessarily follows . To render more complete our comparison between the Tunicata and the Polyzoa , one interesting point of difference ...
... Tunicata , and therefore comes to be situated on the polypide itself , all whose motions it then necessarily follows . To render more complete our comparison between the Tunicata and the Polyzoa , one interesting point of difference ...
Página 53
... Tunicata are those which really exist in nature ; but there still remain to be considered some other relations of great interest presented by the Polyzoa . We know that the affinities of organized beings are not confined to those which ...
... Tunicata are those which really exist in nature ; but there still remain to be considered some other relations of great interest presented by the Polyzoa . We know that the affinities of organized beings are not confined to those which ...
Página 54
... Tunicata , and in the other through the Brachiopoda ; while the Tunicata and Brachiopoda conduct us by well - marked relations through the Lamellibranchiata into the higher Mollusca . In determining the limits between the Mollusca and ...
... Tunicata , and in the other through the Brachiopoda ; while the Tunicata and Brachiopoda conduct us by well - marked relations through the Lamellibranchiata into the higher Mollusca . In determining the limits between the Mollusca and ...
Otras ediciones - Ver todas
A Monograph of the Fresh-water Polyzoa: Including All the Known ..., Tema 28 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 - 2009 |
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 cœnocium crescentic Cristatella Cristatella mucedo d'eau douce described Difflugia disc distinct Dumortier ectocyst embryo endocyst epistome exserted external fibres flabellum fluid fresh-water Polyzoa funiculus ganglion genera genus Gervais hæmal Hancock hippocrepian Hist homologous intestine invaginated l'Acad Lamarck layer Leidy Linnæus lophophore Lophopus crystallinus margin Mém membrane memoir Meyen mouth Müller Naisa naturalists observed œsophagus organ orifice Original figures ovary ovum 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 septa 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 Zoophytes