A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign |
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Página 7
... and if to these characters we add the presence of true sexual organs in the form of ovary and testis occupying some portion of the interior of the sac , and the negative character of the absence of all vestige of a heart , we shall ...
... and if to these characters we add the presence of true sexual organs in the form of ovary and testis occupying some portion of the interior of the sac , and the negative character of the absence of all vestige of a heart , we shall ...
Página 8
surface a secondary investment of very various constitution in the different groups ; and we may , moreover , conceive of the entire animal with its digestive tube , tentacula , ganglion , muscles , generative organs , circumambient ...
surface a secondary investment of very various constitution in the different groups ; and we may , moreover , conceive of the entire animal with its digestive tube , tentacula , ganglion , muscles , generative organs , circumambient ...
Página 10
... and Cheilostomata , were proposed by Busk , to indicate the primary subdivisions of the marine Gymnolćmatous Polyzoa . ( Voyage of " The Rattlesnake , " vol . i , Appendix , p . 346. ) 2 . ANATOMY . A. Organs for the Preservation of.
... and Cheilostomata , were proposed by Busk , to indicate the primary subdivisions of the marine Gymnolćmatous Polyzoa . ( Voyage of " The Rattlesnake , " vol . i , Appendix , p . 346. ) 2 . ANATOMY . A. Organs for the Preservation of.
Página 11
A. Organs for the Preservation of the Individual . ( 1 ) Dermal System . Canacium . - The Polyzoa being all composite animals , the canoecium constitutes essentially an assemblage of little cells or chambers , of very various form ...
A. Organs for the Preservation of the Individual . ( 1 ) Dermal System . Canacium . - The Polyzoa being all composite animals , the canoecium constitutes essentially an assemblage of little cells or chambers , of very various form ...
Página 15
... unless more elaborately conducted researches shall prove the essential constituent of the tissue in question be identical with the more highly nitrogenized conchiolin of ordinary Mollusca . * ( 2. ) Organs of Digestion .
... unless more elaborately conducted researches shall prove the essential constituent of the tissue in question be identical with the more highly nitrogenized conchiolin of ordinary Mollusca . * ( 2. ) Organs of Digestion .
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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
action adherent admit Alcyonella alimentary canal Allman already anatomy animal appearance Ascidian attached become Beneden bodies branches branchial British cavity cell character cilia closely complete condition connected consists constitutes contained continuous corresponding Cristatella described detected disc distinct Dumortier ectocyst edit endocyst entire epistome examined existence extending external extremity fibres fluid Fredericella fresh-water Polyzoa genera genus Gervais gives Hancock Hist important internal latter layer Leidy lophophore Lophopus margin mass Mém membrane memoir minute mouth muscles Natural naturalists nearly observed occur organ orifice Original figures Paludicella passes Plumatella Plumatella repens Polype polypide Polyzoon portion present published relations repens resemblance retraction retractor Rösel seen separated sheath side space species specimens statoblasts stomach stones structure surface surrounding tentacula transparent transverse Trembley true tubes Tubularia tunic Tunicata walls whole young
Información bibliográfica
| Título | A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign Volumen18 de ¬The Ray Society |
| Autor | George James Allman |
| Editor | Ray Society, 1856 |
| Procedencia del original | la Biblioteca Estatal de Baviera |
| Digitalizado | 13 Nov. 2009 |
| Largo | 119 páginas |
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