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 12
... continuous layer . There can be no doubt that these fibres of the endocyst are muscular , and that it is to their presence that the high degree of contractility enjoyed by the endocyst of Lophopus is in a great measure , if not entirely ...
... continuous layer . There can be no doubt that these fibres of the endocyst are muscular , and that it is to their presence that the high degree of contractility enjoyed by the endocyst of Lophopus is in a great measure , if not entirely ...
Página 16
... continuous on the neural side , with a hol ow valve - like organ ( e ) of very peculiar formation . This organ arches over the mouth , and may be aptly enough compared in shape to the epiglottis of certain mammifers . The cavity in its ...
... continuous on the neural side , with a hol ow valve - like organ ( e ) of very peculiar formation . This organ arches over the mouth , and may be aptly enough compared in shape to the epiglottis of certain mammifers . The cavity in its ...
Página 19
... continuous . series . This condition of the lophophore is found in no marine species . In Fredericella the arms of the crescent are obsolete , and the lophophore here may , on a superficial view , appear orbicular ; but a careful ...
... continuous . series . This condition of the lophophore is found in no marine species . In Fredericella the arms of the crescent are obsolete , and the lophophore here may , on a superficial view , appear orbicular ; but a careful ...
Página 21
... continuous lining extending over nearly the whole of the internal surface of the stomach , is here confined to the anterior portion of this sac , in the space between the cardiac and pyloric orifices , where it constitutes a dark brown ...
... continuous lining extending over nearly the whole of the internal surface of the stomach , is here confined to the anterior portion of this sac , in the space between the cardiac and pyloric orifices , where it constitutes a dark brown ...
Página 25
... continuous with one another below , and when they arrive at the intervals between the roots of the tentacula , each divides into two others , which would appear to run along the opposed sides of two neighbouring tentacula . M. Van ...
... continuous with one another below , and when they arrive at the intervals between the roots of the tentacula , each divides into two others , which would appear to run along the opposed sides of two neighbouring tentacula . M. Van ...
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
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 |
| Exportar cita | BiBTeX EndNote RefMan |