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 18
... internal layer of the stomach nearly disappear in it , and , during the process of digestion , we may perceive that the peculiar peristaltic action of the walls is more marked in it than in any other part of the gastric cavity , while ...
... internal layer of the stomach nearly disappear in it , and , during the process of digestion , we may perceive that the peculiar peristaltic action of the walls is more marked in it than in any other part of the gastric cavity , while ...
Página 36
... internal tunic has numerous large , round , nucleated cells distributed through its substance , and internally it presents an uneven surface . The two tunics of the gemma are to become the ectocyst and endocyst of the future cell . By ...
... internal tunic has numerous large , round , nucleated cells distributed through its substance , and internally it presents an uneven surface . The two tunics of the gemma are to become the ectocyst and endocyst of the future cell . By ...
Página 49
... internal tunic in the Tunicata . The cloaca of the Tunicata is nothing more than the dorsal portion of the thoracic chamber in these animals , and is plainly represented in the retracted Polyzoon by the dorsal portion of the cavity of ...
... internal tunic in the Tunicata . The cloaca of the Tunicata is nothing more than the dorsal portion of the thoracic chamber in these animals , and is plainly represented in the retracted Polyzoon by the dorsal portion of the cavity of ...
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