A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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Página 26
7 , t ) , longer and stronger than the last , behind which they arise , from the inner
surface of the endocyst in a single plain perpendicular to the axis of the cell , and
thence passing upwards and inwards , are inserted into the sheath in a plane ...
7 , t ) , longer and stronger than the last , behind which they arise , from the inner
surface of the endocyst in a single plain perpendicular to the axis of the cell , and
thence passing upwards and inwards , are inserted into the sheath in a plane ...
Página 36
It is the rudimental polypide , and we soon find in it a cavity , which is to become
that of the tentacular sheath , within which , when viewed in front , may be seen
an oval ring ( fig . 5 ) which is afterwards to become the lophophore of the
polypide ...
It is the rudimental polypide , and we soon find in it a cavity , which is to become
that of the tentacular sheath , within which , when viewed in front , may be seen
an oval ring ( fig . 5 ) which is afterwards to become the lophophore of the
polypide ...
Página 49
8 , 9 , page 45 ) does to the corresponding parts of these during the retracted
state of the animal ; it scarcely differs , in fact , from the tentacular sheath of the
Polyzoa in anything except its being united to the branchial sac along the hæmal
side ...
8 , 9 , page 45 ) does to the corresponding parts of these during the retracted
state of the animal ; it scarcely differs , in fact , from the tentacular sheath of the
Polyzoa in anything except its being united to the branchial sac along the hæmal
side ...
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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 cavity cell characters cilia closely complete condition connected consists constitutes contained continuous corresponding Cristatella crown 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 organs orifice Original figures Paludicella passes Plumatella Plumatella repens Polype polypide Polyzoon portion present published relations repens resemblance retraction retractor Rösel seen separated sheath side similar 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 | Universidad de Michigan |
| Digitalizado | 13 Feb. 2012 |
| Largo | 119 páginas |
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