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 52
... admit of an easy comparison , so far as they go , with the corresponding steps in the development of the Polyzoa . It will be recollected that , in the development of the bud of a Polyzoon , a minute anterior cavity , closed on all ...
... admit of an easy comparison , so far as they go , with the corresponding steps in the development of the Polyzoa . It will be recollected that , in the development of the bud of a Polyzoon , a minute anterior cavity , closed on all ...
Página 54
... admit them , even to the extent which our ignorance of Brachiopodal embryology will admit , we must cease to look upon the avicularium as a mere organ in the ordinary sense of this word , and consider it as a distinct though very ...
... admit them , even to the extent which our ignorance of Brachiopodal embryology will admit , we must cease to look upon the avicularium as a mere organ in the ordinary sense of this word , and consider it as a distinct though very ...
Página 55
... admit of the association of these bivalves with the Molluscoida . * * I cannot conclude this division of our subject without referring to a most singular little animal , whose true position is undoubtedly among the Annelida , but which ...
... admit of the association of these bivalves with the Molluscoida . * * I cannot conclude this division of our subject without referring to a most singular little animal , whose true position is undoubtedly among the Annelida , but which ...
Página 64
... admit the existence of distinct muscles , and maintains that Trembley erroneously ascribed retractor muscles to his " Polype à Panache , " asserting that he has mistaken for them the inverted tentacular sheath . Here also , Raspail , in ...
... admit the existence of distinct muscles , and maintains that Trembley erroneously ascribed retractor muscles to his " Polype à Panache , " asserting that he has mistaken for them the inverted tentacular sheath . Here also , Raspail , in ...
Página 65
... admits his inability to determine the nature of the brown egg - like bodies found in the interior of the tubes , and denies to them the office of eggs . In a subsequent note by the same author , published in the ' Isis , ' 1830 , * he ...
... admits his inability to determine the nature of the brown egg - like bodies found in the interior of the tubes , and denies to them the office of eggs . In a subsequent note by the same author , published in the ' Isis , ' 1830 , * he ...
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