A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28Ray Society, 1856 - 119 páginas |
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Página 21
... retractor fibres are obviously homologous with the great retractor muscles of the others . The mouth , which occupies its normal position in the body of the lophophore , opens into an œsophagus , which after a short course terminates in ...
... retractor fibres are obviously homologous with the great retractor muscles of the others . The mouth , which occupies its normal position in the body of the lophophore , opens into an œsophagus , which after a short course terminates in ...
Página 24
... Retractor Muscles of the Polypide . These , which are the largest and most powerful muscles of the animal , consist of two fasciculi ( Pl . IV , fig . 4 ; V , fig . 5 ; IX , fig . 7 , n ) , which arise far back from the inner surface of ...
... Retractor Muscles of the Polypide . These , which are the largest and most powerful muscles of the animal , consist of two fasciculi ( Pl . IV , fig . 4 ; V , fig . 5 ; IX , fig . 7 , n ) , which arise far back from the inner surface of ...
Página 30
... retractor muscles act directly on the polypide and withdraw it into the cell , the anterior and posterior parieto- vaginal muscles in Paludicella drawing after it as it descends that portion of the endocyst which had been carried out ...
... retractor muscles act directly on the polypide and withdraw it into the cell , the anterior and posterior parieto- vaginal muscles in Paludicella drawing after it as it descends that portion of the endocyst which had been carried out ...
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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 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