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 1
... confined to the ocean ; and though by far the greater number are marine , yet in the still and running waters of the land - in the broad river and the rushing stream - in the pure , cold mountain lake and the stagnant waters of the ...
... confined to the ocean ; and though by far the greater number are marine , yet in the still and running waters of the land - in the broad river and the rushing stream - in the pure , cold mountain lake and the stagnant waters of the ...
Página 38
... confined by an external , common , transparent membrane , which is itself manifestly cellular ( fig . 38 ) . This cellular condition of the contents must not be confounded with a true segmentation . The whole body now assumes a more ...
... confined by an external , common , transparent membrane , which is itself manifestly cellular ( fig . 38 ) . This cellular condition of the contents must not be confounded with a true segmentation . The whole body now assumes a more ...
Página 53
... confined to those which directly unite them to some single allied form . On the contrary , they stream forth from them in various directions , and bring into a community of plan many different types . Besides the close affinity between ...
... confined to those which directly unite them to some single allied form . On the contrary , they stream forth from them in various directions , and bring into a community of plan many different types . Besides the close affinity between ...
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A Monograph of the Fresh-water Polyzoa: Including All the Known Species ... George James Allman Vista de fragmentos - 1856 |
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