A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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Página 13
The perfectly transparent wide origin of this line gives to the orifice of the cell the
appearance of having a deep notch on one side . In Fredericella a slightly
prominent keel is also apparent , but the notch - like transparent space does not
here ...
The perfectly transparent wide origin of this line gives to the orifice of the cell the
appearance of having a deep notch on one side . In Fredericella a slightly
prominent keel is also apparent , but the notch - like transparent space does not
here ...
Página 25
The margin of the lophophore in the interval of the bands presents an oval
transparent space , which looks exactly like an aperture , and it would seem to be
these spaces which M. Van Beneden has taken for “ aquiferous mouths ; " after
very ...
The margin of the lophophore in the interval of the bands presents an oval
transparent space , which looks exactly like an aperture , and it would seem to be
these spaces which M. Van Beneden has taken for “ aquiferous mouths ; " after
very ...
Página 108
The ectocyst is yellowish - brown , becoming , as in all the furrowed species with
which we are as yet acquainted , lighter coloured towards the extremity of the
ramuli , and then assuming the thin transparent condition , which it retains as far
as ...
The ectocyst is yellowish - brown , becoming , as in all the furrowed species with
which we are as yet acquainted , lighter coloured towards the extremity of the
ramuli , and then assuming the thin transparent condition , which it retains as far
as ...
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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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