A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28Ray Society, 1856 - 119 páginas |
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Página 22
... appearance ; the festooning of the margin is most marked in Fredericella ; in some species of Plumatella it is scarcely perceptible . A high power of the microscope , and carefully adjusted illumination , will enable us to detect in the ...
... appearance ; the festooning of the margin is most marked in Fredericella ; in some species of Plumatella it is scarcely perceptible . A high power of the microscope , and carefully adjusted illumination , will enable us to detect in the ...
Página 37
... appearance of the bud in Lophopus is seen near the orifice of the cell , as a minute spherical tubercle ( Pl . XI , fig . 10 ) , projecting from the inner surface of the endocyst into the perigastric space . It is evidently composed of ...
... appearance of the bud in Lophopus is seen near the orifice of the cell , as a minute spherical tubercle ( Pl . XI , fig . 10 ) , projecting from the inner surface of the endocyst into the perigastric space . It is evidently composed of ...
Página 64
... appearance which Raspail referred to the inverted sheath of the tentacula . Raspail did not allow the cilia with which the tentacula are clothed to escape him , though he strangely refers the phenomena of ciliary motion , here as well ...
... appearance which Raspail referred to the inverted sheath of the tentacula . Raspail did not allow the cilia with which the tentacula are clothed to escape him , though he strangely refers the phenomena of ciliary motion , here as well ...
Otras ediciones - Ver todas
A Monograph of the Fresh-Water Polyzoa, Including All the Known Species ... George James Allman Sin vista previa disponible - 2009 |
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 cœnocium 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 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