A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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Página 23
I It is possible that certain apertures may exist in some of the tissues of the animal
so minute as to defy our attempts at detection , and yet capable of permitting a
passage of fluid ; some facts already recorded ( page 13 ) , would seem to point
to ...
I It is possible that certain apertures may exist in some of the tissues of the animal
so minute as to defy our attempts at detection , and yet capable of permitting a
passage of fluid ; some facts already recorded ( page 13 ) , would seem to point
to ...
Página 37
The first appearance of the bud in Lophopus is seen near the orifice of the cell ,
as a minute spherical tubercle ( Pl . XI , fig . 10 ) , projecting from the inner surface
of the endocyst into the perigastric space . It is evidently composed of a mass of ...
The first appearance of the bud in Lophopus is seen near the orifice of the cell ,
as a minute spherical tubercle ( Pl . XI , fig . 10 ) , projecting from the inner surface
of the endocyst into the perigastric space . It is evidently composed of a mass of ...
Página
Statoblast of Lophopus crystallinus in a very early stage , in which it appears as a
minute swelling upon the funiculus . 37. The same more advanced . The contents
of the statoblast are here seen to be divided into two distinct portions . 38.
Statoblast of Lophopus crystallinus in a very early stage , in which it appears as a
minute swelling upon the funiculus . 37. The same more advanced . The contents
of the statoblast are here seen to be divided into two distinct portions . 38.
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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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