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 34
Página 21
... space . The intestine passes first forwards and towards the neural side , then turns towards the mouth to open after a wide dilation between the arms of the lophophore in the bottom of the tentacular crater . The concave margin of the ...
... space . The intestine passes first forwards and towards the neural side , then turns towards the mouth to open after a wide dilation between the arms of the lophophore in the bottom of the tentacular crater . The concave margin of the ...
Página 22
... space , and interior of the tentacula and lophophore , all freely communicate with one another , and are filled with a clear fluid , in which float numerous particles of very irre- gular form and size . In this fluid may be observed a ...
... space , and interior of the tentacula and lophophore , all freely communicate with one another , and are filled with a clear fluid , in which float numerous particles of very irre- gular form and size . In this fluid may be observed a ...
Página 23
... space . The real signification of the perigastric fluid is a point whose determination must be of great importance in the physiology of the Polyzoa . As has just been said , it is by no means homogeneous , and numerous corpuscles of ...
... space . The real signification of the perigastric fluid is a point whose determination must be of great importance in the physiology of the Polyzoa . As has just been said , it is by no means homogeneous , and numerous corpuscles of ...
Página 24
... space , but on the external surface of the alimentary canal . I cannot , however , confirm their existence in the latter situation ; indeed , my own observations are entirely opposed to their presence on the alimen- tary canal ; and I ...
... space , but on the external surface of the alimentary canal . I cannot , however , confirm their existence in the latter situation ; indeed , my own observations are entirely opposed to their presence on the alimen- tary canal ; and I ...
Página 25
... space , which looks exactly like an aperture , and it would seem to be these spaces which M. Van Beneden has taken for “ aqui- ferous mouths ; " after very careful examination , however , I have convinced myself that no aperture exists ...
... space , which looks exactly like an aperture , and it would seem to be these spaces which M. Van Beneden has taken for “ aqui- ferous mouths ; " after very careful examination , however , I have convinced myself that no aperture exists ...
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