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 46
... branchial sinus to be depressed towards the neural side of the Ascidian , by a rotation round its oral extremity through an angle of 90 ° in a vertical plane passing through the mouth and anus ; its position from longitudinal will thus ...
... branchial sinus to be depressed towards the neural side of the Ascidian , by a rotation round its oral extremity through an angle of 90 ° in a vertical plane passing through the mouth and anus ; its position from longitudinal will thus ...
Página 52
... branchial stigmata subsequently increase in number , the branchial sac at the same time detaching itself more and more from the walls of the thoracic chamber , while the space thus produced , and bounded internally by the walls of the ...
... branchial stigmata subsequently increase in number , the branchial sac at the same time detaching itself more and more from the walls of the thoracic chamber , while the space thus produced , and bounded internally by the walls of the ...
Página 53
... branchial sac of the Ascidian , becomes separated from it just as the branchial sac separates itself from the walls of the thoracic chamber of the Ascidian . The development of Salpa has been especially studied by Leuckart . * From the ...
... branchial sac of the Ascidian , becomes separated from it just as the branchial sac separates itself from the walls of the thoracic chamber of the Ascidian . The development of Salpa has been especially studied by Leuckart . * From the ...
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