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 36
... constitutes the tentacular sheath . Some delicate fibres , the rudiments of the retractor of the polypide , may now be plainly seen extending from just behind the lophophore to the walls of the cell . The body of the polypide at the ...
... constitutes the tentacular sheath . Some delicate fibres , the rudiments of the retractor of the polypide , may now be plainly seen extending from just behind the lophophore to the walls of the cell . The body of the polypide at the ...
Página 42
... constitute a third zooid , which would therefore be a sexual zooid ; it is , however , unisexual ( female ) . In the next place we find that upon the funiculus ( in Alcyonella ) , which probably belongs rather to the polypide than to ...
... constitute a third zooid , which would therefore be a sexual zooid ; it is , however , unisexual ( female ) . In the next place we find that upon the funiculus ( in Alcyonella ) , which probably belongs rather to the polypide than to ...
Página 44
... constitute , in fact , a series of communicating channels , passing transversely between these two sinuses , re- ceiving the blood from one and pouring it into the other . In advocating the homology of the respiratory sac of the ...
... constitute , in fact , a series of communicating channels , passing transversely between these two sinuses , re- ceiving the blood from one and pouring it into the other . In advocating the homology of the respiratory sac of the ...
Página 45
... constitutes the proper walls of the respiratory sac , to the interior of which the respiratory bars of the Ascidian are adherent , and which is pierced in the intervals of these bars by the " branchial stigmata , " will have its ...
... constitutes the proper walls of the respiratory sac , to the interior of which the respiratory bars of the Ascidian are adherent , and which is pierced in the intervals of these bars by the " branchial stigmata , " will have its ...
Página 48
... constitutes an imperfect diaphragm , which divides the great thoracic chamber into an anterior or branchial portion , and a posterior or cloacal portion . Now the main tube may be obviously compared to the great " branchial sinus " of ...
... constitutes an imperfect diaphragm , which divides the great thoracic chamber into an anterior or branchial portion , and a posterior or cloacal portion . Now the main tube may be obviously compared to the great " branchial sinus " of ...
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