A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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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 82
Ovum ( statoblast ) , with its sheath , thin , discoidal , bent , 3 inch broad , with its
appendages enveloped in a hyaline , albuminoid mass ; when ripe , floating . “
The surface of the polype mass has the appearance of being covered with a
dense ...
Ovum ( statoblast ) , with its sheath , thin , discoidal , bent , 3 inch broad , with its
appendages enveloped in a hyaline , albuminoid mass ; when ripe , floating . “
The surface of the polype mass has the appearance of being covered with a
dense ...
Página 89
Alcyonella fungosa presents itself in the form of brown fungoid masses of very
variable size and shape , attached to the ... disappear , and then the surface of
the mass presents a multitude of closely applied hexagonal or pentagonal
orifices .
Alcyonella fungosa presents itself in the form of brown fungoid masses of very
variable size and shape , attached to the ... disappear , and then the surface of
the mass presents a multitude of closely applied hexagonal or pentagonal
orifices .
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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 character cilia closely complete condition connected consists constitutes contained continuous 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 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 Illinois en Urbana-Champaign |
| Digitalizado | 13 Oct. 2015 |
| Largo | 119 páginas |
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