A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
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Resultados 1-3 de 37
Página 29
... polypide , is scarcely at all bent , so that here its agency in exsertion is at once out of the question . Let us suppose the polypide withdrawn into the recesses of the cell , and that hunger or some other stimulus impresses on it a ...
... polypide , is scarcely at all bent , so that here its agency in exsertion is at once out of the question . Let us suppose the polypide withdrawn into the recesses of the cell , and that hunger or some other stimulus impresses on it a ...
Página 34
... polypide is developed ( Pl . XI , fig . 30 ) . This appears to take place in a manner quite similar to that by which new polypides are produced by gemmation from the walls of the endocystal cavity in the adult . The gemmation of the ...
... polypide is developed ( Pl . XI , fig . 30 ) . This appears to take place in a manner quite similar to that by which new polypides are produced by gemmation from the walls of the endocystal cavity in the adult . The gemmation of the ...
Página 36
... polypide , and we soon find in it a cavity , which is to become that of the tentacular sheath , within which , when viewed in front , may be seen an oval ring ( fig . 5 ) which is afterwards to become the lophophore of the polypide ...
... polypide , and we soon find in it a cavity , which is to become that of the tentacular sheath , within which , when viewed in front , may be seen an oval ring ( fig . 5 ) which is afterwards to become the lophophore of the polypide ...
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