A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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Página 7
Alimentary canal . c . Anus . d . Nervous ganglion . e . Membranous investing sac
. f . Testis . f ' . Ovary . g . Retractor muscle , Let us imagine an alimentary canal ,
consisting of esophagus , stomach , and intestine , to be furnished at its origin ...
Alimentary canal . c . Anus . d . Nervous ganglion . e . Membranous investing sac
. f . Testis . f ' . Ovary . g . Retractor muscle , Let us imagine an alimentary canal ,
consisting of esophagus , stomach , and intestine , to be furnished at its origin ...
Página 18
The fundus of the stomach appears to differ from the rest of the alimentary canal
in structure and function ; the well - defined longitudinal rugæ and deep brown
colour of the internal layer of the stomach nearly disappear in it , and , during the
...
The fundus of the stomach appears to differ from the rest of the alimentary canal
in structure and function ; the well - defined longitudinal rugæ and deep brown
colour of the internal layer of the stomach nearly disappear in it , and , during the
...
Página 24
I cannot , however , confirm their existence in the latter situation ; indeed , my own
observations are entirely opposed to their presence on the alimentary canal ; and
I cannot help thinking that this statement of Van Beneden is connected with ...
I cannot , however , confirm their existence in the latter situation ; indeed , my own
observations are entirely opposed to their presence on the alimentary canal ; and
I cannot help thinking that this statement of Van Beneden is connected with ...
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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 alimentary canal Allman already anatomy animal appearance Ascidian attached become Beneden bodies branches branchial British canal 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 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