A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
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Página 43
... relations of the Polyzoa began at last to be recognised in an obvious resemblance between their organization and that of the Ascidea . Guided by this relation , an important step was finally taken by M. Milne- Edwards in distinguishing ...
... relations of the Polyzoa began at last to be recognised in an obvious resemblance between their organization and that of the Ascidea . Guided by this relation , an important step was finally taken by M. Milne- Edwards in distinguishing ...
Página 53
... relation with the Brachio- poda . Mr. Hancock † had maintained the resemblance between the arms of the lophophore in the hippocrepian Polyzoa and the oral arms of the Brachiopoda , a resemblance singularly striking , and pointing to an ...
... relation with the Brachio- poda . Mr. Hancock † had maintained the resemblance between the arms of the lophophore in the hippocrepian Polyzoa and the oral arms of the Brachiopoda , a resemblance singularly striking , and pointing to an ...
Página 54
... relation to surrounding parts , though the organs themselves be fundamentally different ; and it needs the light afforded by development before our conclusions as to homological identity can be considered as fully established , while ...
... relation to surrounding parts , though the organs themselves be fundamentally different ; and it needs the light afforded by development before our conclusions as to homological identity can be considered as fully established , while ...
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 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 longitudinal 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