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 34
... extending along the arms , which at the same time acquire increased proportional length ; the tentacula gradually elongate themselves and acquire cilia . At the same time , the alimentary canal , represented at first by a single small ...
... extending along the arms , which at the same time acquire increased proportional length ; the tentacula gradually elongate themselves and acquire cilia . At the same time , the alimentary canal , represented at first by a single small ...
Página 36
... extending from just behind the lophophore to the walls of the cell . The body of the polypide at the spot directly opposite to the rudimental crown of tentacula , is also seen to be connected by a short , thick , fleshy mass , with the ...
... extending from just behind the lophophore to the walls of the cell . The body of the polypide at the spot directly opposite to the rudimental crown of tentacula , is also seen to be connected by a short , thick , fleshy mass , with the ...
Página 101
... extending more than half an inch ; branches com- posed of a series of large , conical cells , tapering upwards towards the aperture , sometimes considerably and rather suddenly dilated at the base , resembling in form some of the ...
... extending more than half an inch ; branches com- posed of a series of large , conical cells , tapering upwards towards the aperture , sometimes considerably and rather suddenly dilated at the base , resembling in form some of 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