A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
Dentro del libro
Resultados 6-10 de 28
Página 14
... entire length to the sides of the cell , they would at once be converted into the ribs of Paludicella ; the fact of the setæ in the ctenostomatous Polyzoa being connected to one another by a delicate membrane does not in the least ...
... entire length to the sides of the cell , they would at once be converted into the ribs of Paludicella ; the fact of the setæ in the ctenostomatous Polyzoa being connected to one another by a delicate membrane does not in the least ...
Página 18
... entire tract in all the genera examined is highly irritable , the presence of alimentary matter stimulating it to rapid and vigorous contraction . The whole course of the alimentary matter , from the moment of its prehension to its ...
... entire tract in all the genera examined is highly irritable , the presence of alimentary matter stimulating it to rapid and vigorous contraction . The whole course of the alimentary matter , from the moment of its prehension to its ...
Página 19
... entire class of an orbicular figure ; but in the fresh - water genera Cristatella , Lophopus , Plumatella , and Alcyonella , its neural margin , or that which corresponds to the side of the rectum , is extended into two long triangular ...
... entire class of an orbicular figure ; but in the fresh - water genera Cristatella , Lophopus , Plumatella , and Alcyonella , its neural margin , or that which corresponds to the side of the rectum , is extended into two long triangular ...
Página 21
... entire plume of tentacula is surrounded at its base by an exceedingly delicate water Phylactolæmata is probably united . In order to understand this relation , it is necessary to conceive of the polypide as partially retracted ; the ...
... entire plume of tentacula is surrounded at its base by an exceedingly delicate water Phylactolæmata is probably united . In order to understand this relation , it is necessary to conceive of the polypide as partially retracted ; the ...
Página 30
... entire course . The fibres of the great retractor muscle are distinctly marked with transverse striæ , a condition , however , which is not at all times equally perceptible ; and some of our best observers have denied to the Polyzoa the ...
... entire course . The fibres of the great retractor muscle are distinctly marked with transverse striæ , a condition , however , which is not at all times equally perceptible ; and some of our best observers have denied to the Polyzoa the ...
Otras ediciones - Ver todas
A Monograph of the Fresh-water Polyzoa: Including All the Known ..., Tema 28 George James Allman Vista de fragmentos - 1856 |
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 Linnæus 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