A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
Dentro del libro
Resultados 1-3 de 46
Página 33
... surface of the stomach , near the commencement of the intestine , and by the other attached to the walls of the cell , and apparently also in connection at this - place with the ovary , is a cylindrical flexible chord ( anterior ...
... surface of the stomach , near the commencement of the intestine , and by the other attached to the walls of the cell , and apparently also in connection at this - place with the ovary , is a cylindrical flexible chord ( anterior ...
Página 79
... surface are arranged the orifices through which the polypides emerge , they are placed near the margin , and run round the entire cœnocium in three regular concentric series , which alternate with one another , and leave an oval space ...
... surface are arranged the orifices through which the polypides emerge , they are placed near the margin , and run round the entire cœnocium in three regular concentric series , which alternate with one another , and leave an oval space ...
Página 89
... surface of different fixed objects , as stones , pieces of wood , fresh - water shells , & c . The masses frequently acquire a considerable size , weighing upwards of a pound . pound . They are often irregularly lobed , and when they ...
... surface of different fixed objects , as stones , pieces of wood , fresh - water shells , & c . The masses frequently acquire a considerable size , weighing upwards of a pound . pound . They are often irregularly lobed , and when they ...
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