A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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Página 3
... maintaining that these productions possessed a double nature , that their
stems and branches grew by a true vegetation and possessed the essential
characters of plants , while their polypes were certain inflorescences or
developments of ...
... maintaining that these productions possessed a double nature , that their
stems and branches grew by a true vegetation and possessed the essential
characters of plants , while their polypes were certain inflorescences or
developments of ...
Página 31
24 , ) which immediately enters the tubular arms of the lophophore , and then ,
after giving off a branch which runs along the root of the lophophore towards the
hæmal side , and which sends in its passage a filament to each tentacle on this ...
24 , ) which immediately enters the tubular arms of the lophophore , and then ,
after giving off a branch which runs along the root of the lophophore towards the
hæmal side , and which sends in its passage a filament to each tentacle on this ...
Página 35
In Cristatella the gemmæ are produced very regularly from constant points on the
sides of the previously existing cells , and the new cells thus produced remaining
in apposition with one another , and never becoming extended into branches ...
In Cristatella the gemmæ are produced very regularly from constant points on the
sides of the previously existing cells , and the new cells thus produced remaining
in apposition with one another , and never becoming extended into branches ...
Página 48
Now the main tube may be obviously compared to the great “ branchial sinus ” of
Clavelina , and the lateral branches to the transverse respiratory bars of that
tunicate . The longitudinal bars have totally disappeared , and the posterior
extremity ...
Now the main tube may be obviously compared to the great “ branchial sinus ” of
Clavelina , and the lateral branches to the transverse respiratory bars of that
tunicate . The longitudinal bars have totally disappeared , and the posterior
extremity ...
Página 56
We now find that the returning blood has entered another great vessel , which
lies upon the æsophagus , and is formed by the union of two branches , one from
each arm of the crescent , which embrace the esophagus just behind the mouth .
We now find that the returning blood has entered another great vessel , which
lies upon the æsophagus , and is formed by the union of two branches , one from
each arm of the crescent , which embrace the esophagus just behind the mouth .
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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 ..., Tema 28 George James Allman Vista de fragmentos - 1856 |
Términos y frases comunes
adherent admit Alcyonella alimentary canal Allman already anatomy animal appearance Ascidian attached become Beneden bodies branches branchial British cænæcium 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 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 represented 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, Tema 28 A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, George James Allman Volumen13 de DE-601)130488305: Ray Society Publications, Ray Society Ray Society, Ray Society Volumen28 de Ray society ... [Publications |
| 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 |