A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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Página 11
The intervening substance , which , before the application of the acetic acid ,
appeared simply granular , is now seen to others a young 1 consist almost
entirely of bodies exactly. * In Pedicellina , and apparently also in Urnatella , the
power of ...
The intervening substance , which , before the application of the acetic acid ,
appeared simply granular , is now seen to others a young 1 consist almost
entirely of bodies exactly. * In Pedicellina , and apparently also in Urnatella , the
power of ...
Página 12
others a young 1 consist almost entirely of bodies exactly resembling the nuclei
of the cells ; some of these intercellular nuclei contain two nucleoli , and seem to
be undergoing division , while round cell may be seen in various stages of ...
others a young 1 consist almost entirely of bodies exactly resembling the nuclei
of the cells ; some of these intercellular nuclei contain two nucleoli , and seem to
be undergoing division , while round cell may be seen in various stages of ...
Página 34
The arms of the lophophore in the young polypides are at first but slightly
developed , and there is as yet no trace of tentacula ( Pl . XI , fig . 304 ) ; these
soon present themselves in the form of minute tubercles , at first confined to the
body of the ...
The arms of the lophophore in the young polypides are at first but slightly
developed , and there is as yet no trace of tentacula ( Pl . XI , fig . 304 ) ; these
soon present themselves in the form of minute tubercles , at first confined to the
body of the ...
Página 36
We next perceive that a portion of the lining tunic , near the wide extremity of the
gemma , projects in the form of a roundish mass into the interior of the young cell
( fig . 4 ) . It is the rudimental polypide , and we soon find in it a cavity , which is to
...
We next perceive that a portion of the lining tunic , near the wide extremity of the
gemma , projects in the form of a roundish mass into the interior of the young cell
( fig . 4 ) . It is the rudimental polypide , and we soon find in it a cavity , which is to
...
Página 37
By this time the young polypide has become removed from the surface of the
endocyst of the parent cell , to which it is now only connected by a membranous
sac which suspends it in the perigastric space of the adult , and which ultimately ...
By this time the young polypide has become removed from the surface of the
endocyst of the parent cell , to which it is now only connected by a membranous
sac which suspends it in the perigastric space of the adult , and which ultimately ...
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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 alimentary canal Allman already anatomy animal appearance Ascidian attached become Beneden bodies branches branchial British cænæcium canal cavity cell character cilia closely complete condition connected consists constitutes contained continuous 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 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 | la Biblioteca Estatal de Baviera |
| Digitalizado | 13 Nov. 2009 |
| Largo | 119 páginas |
| Exportar cita | BiBTeX EndNote RefMan |