A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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Página 22
... admit the by no means improbable supposition that it enters partly into the
composition of the calyx - like cup which surrounds the base of the tentacles in
Pedicellina , the only marine genus in which an epistome is also represented .
... admit the by no means improbable supposition that it enters partly into the
composition of the calyx - like cup which surrounds the base of the tentacles in
Pedicellina , the only marine genus in which an epistome is also represented .
Página 23
here in error , as indeed he himself subsequently admits . Meyen asserts the
existence of an aperture in the vicinity of the anus , through which , he tells us , he
has witnessed the escape of an egg in Alcyonella ; * and Siebold admits the ...
here in error , as indeed he himself subsequently admits . Meyen asserts the
existence of an aperture in the vicinity of the anus , through which , he tells us , he
has witnessed the escape of an egg in Alcyonella ; * and Siebold admits the ...
Página 54
In order , however , to admit them , even to the extent which our ignorance of
Brachiopodal embryology will admit , we must cease to look upon the avicularium
as a mere organ in the ordinary sense of this word , and consider it as a distinct ...
In order , however , to admit them , even to the extent which our ignorance of
Brachiopodal embryology will admit , we must cease to look upon the avicularium
as a mere organ in the ordinary sense of this word , and consider it as a distinct ...
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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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