A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
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... latter will by itself convey but a very imperfect idea of the real character of these beautiful little animals . With regard to the few species which I have not had an opportunity of personally examining , I have availed myself of the ...
... latter will by itself convey but a very imperfect idea of the real character of these beautiful little animals . With regard to the few species which I have not had an opportunity of personally examining , I have availed myself of the ...
Página 6
... latter corresponded to the Polyzoa of Thompson . Though the term Bryozoa had already been used by him in a number of the ' Symbolæ Physicæ , ' published in June , 1831 , the priority of publication is still left with Thompson's name ...
... latter corresponded to the Polyzoa of Thompson . Though the term Bryozoa had already been used by him in a number of the ' Symbolæ Physicæ , ' published in June , 1831 , the priority of publication is still left with Thompson's name ...
Página 9
... latter that of " neural , " thus applying to the Mollusca the terms already so happily employed by Owen in his designation of the regions of the vertebrate skeleton . These terms have the advantage of stating a simple fact , and of thus ...
... latter that of " neural , " thus applying to the Mollusca the terms already so happily employed by Owen in his designation of the regions of the vertebrate skeleton . These terms have the advantage of stating a simple fact , and of thus ...
Página 11
... latter , thus undergoing a process of evertion , which , however , in all the fresh - water species , is but partial , a portion of the endocyst , as we shall afterwards more particularly see , remaining in a permanently inverted ...
... latter , thus undergoing a process of evertion , which , however , in all the fresh - water species , is but partial , a portion of the endocyst , as we shall afterwards more particularly see , remaining in a permanently inverted ...
Página 16
... latter , into which it opens by a very distinct conical projection ( Pl . III , fig . 7 , ƒ ' ) . To the œsophagus immediately succeeds the stomach , without the intervention of any distinct gizzard , such as we find in Bowerbankia and ...
... latter , into which it opens by a very distinct conical projection ( Pl . III , fig . 7 , ƒ ' ) . To the œsophagus immediately succeeds the stomach , without the intervention of any distinct gizzard , such as we find in Bowerbankia and ...
Otras ediciones - Ver todas
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
action adherent admit Alcyonella alimentary canal Allman already anatomy animal appearance Ascidian attached become Beneden bodies branches branchial British cavity cell character cilia closely complete condition connected consists constitutes contained continuous corresponding 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 Hancock Hist important internal latter layer Leidy lophophore Lophopus margin mass Mém membrane memoir minute mouth muscles Natural naturalists nearly observed occur organ 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