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 15
Página 7
... ganglion situated on one side of the oesophagus . Let us now suppose this canal to be bent back upon itself towards the side of the ganglion so as to approximate the termination to the origin . Further , let us imagine the digestive ...
... ganglion situated on one side of the oesophagus . Let us now suppose this canal to be bent back upon itself towards the side of the ganglion so as to approximate the termination to the origin . Further , let us imagine the digestive ...
Página 31
... ganglion there cannot be any doubt , and I have succeeded in distinctly tracing nervous filaments in connection with it . In Cristatella , Lophopus , and other genera with crescentic lophophores , the ganglion may be seen giving off ...
... ganglion there cannot be any doubt , and I have succeeded in distinctly tracing nervous filaments in connection with it . In Cristatella , Lophopus , and other genera with crescentic lophophores , the ganglion may be seen giving off ...
Página 50
... ganglion can no longer occupy the position it held in the Tunicata ; it is therefore carried backwards , and , still bathed in the fluid of the sinus , now becomes situated on the œsophagus , a difference of position which , it will ...
... ganglion can no longer occupy the position it held in the Tunicata ; it is therefore carried backwards , and , still bathed in the fluid of the sinus , now becomes situated on the œsophagus , a difference of position which , it will ...
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