A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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Página 30
The fibres of the great retractor muscle are distinctly marked with transverse striæ
, a condition , however , which is not at all times equally perceptible ; and some of
our best observers have denied to the Polyzoa the existence of striated fibre .
The fibres of the great retractor muscle are distinctly marked with transverse striæ
, a condition , however , which is not at all times equally perceptible ; and some of
our best observers have denied to the Polyzoa the existence of striated fibre .
Página 34
Towards the opening which leads from without into the central cavity the
chorization is incomplete , the membrane as it separates being here still held to
the walls of the cavity by irregular transverse bands ; these bands check the
entire ...
Towards the opening which leads from without into the central cavity the
chorization is incomplete , the membrane as it separates being here still held to
the walls of the cavity by irregular transverse bands ; these bands check the
entire ...
Página 43
... or from behind forwards , the other transversely , or from the neural to the
hæmal side , and thus crossing each other at right angles , while the
membranous wall of the sac , in every one of the * On the Homology of the
Organs of the Tunicata ...
... or from behind forwards , the other transversely , or from the neural to the
hæmal side , and thus crossing each other at right angles , while the
membranous wall of the sac , in every one of the * On the Homology of the
Organs of the Tunicata ...
Página 44
It must , moreover , be borne in mind , that the transverse bars open into two great
longitudinal canals , the “ branchial ... a series of communicating channels ,
passing transversely between these two sinuses , receiving the blood from one
and ...
It must , moreover , be borne in mind , that the transverse bars open into two great
longitudinal canals , the “ branchial ... a series of communicating channels ,
passing transversely between these two sinuses , receiving the blood from one
and ...
Página 45
Now it does not need much assistance from the imagination to see in the great
branchial sinus of Clavelina , a representative of the lophophore of Plumatella ,
while the transverse bars which pass off at either side from this sinus , and are ...
Now it does not need much assistance from the imagination to see in the great
branchial sinus of Clavelina , a representative of the lophophore of Plumatella ,
while the transverse bars which pass off at either side from this sinus , and are ...
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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
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 |
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