A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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Página 13
They were not scattered at random through this membrane , but were contained
in the interior of a system of tubes which formed a network in the substance of the
endocyst ( Pl . II , fig . 13 ) . They are about the 2500th of an inch in the longer ...
They were not scattered at random through this membrane , but were contained
in the interior of a system of tubes which formed a network in the substance of the
endocyst ( Pl . II , fig . 13 ) . They are about the 2500th of an inch in the longer ...
Página 89
When removed from the water , the polypides shrink back into their cells , and the
surface then seems covered with a gelatinous investment , caused by the soft ,
papilla - like , extremities of the tubes . These extremities contract no adhesion ...
When removed from the water , the polypides shrink back into their cells , and the
surface then seems covered with a gelatinous investment , caused by the soft ,
papilla - like , extremities of the tubes . These extremities contract no adhesion ...
Página 90
The tubes are closely adherent to one another until within a short distance of their
terminations , when they become free . ... When withdrawn from the water , the
tubes seem terminated by a little papilliform body , formed by the endocyst , over
...
The tubes are closely adherent to one another until within a short distance of their
terminations , when they become free . ... When withdrawn from the water , the
tubes seem terminated by a little papilliform body , formed by the endocyst , over
...
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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 alimentary canal Allman already anatomy animal appearance Ascidian attached become Beneden bodies branches branchial British canal 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 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 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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