A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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Página 5
He traced the entire course of the alimentary canal , and made himself master of
almost every important point in their structure . He also perceived their close
relation to the compound Ascidiæ , and was the first to designate them by a
distinct ...
He traced the entire course of the alimentary canal , and made himself master of
almost every important point in their structure . He also perceived their close
relation to the compound Ascidiæ , and was the first to designate them by a
distinct ...
Página 7
Alimentary canal . c . Anus . d . Nervous ganglion . e . Membranous investing sac
. f . Testis . fl . 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 . fl . Ovary . g . Retractor muscle . Let us imagine an alimentary canal ,
consisting of esophagus , stomach , and intestine , to be furnished at its origin ...
Página 8
The Perigastric ** space is the space included between the walls of the endocyst
and the alimentary canal . The terms now enumerated are such as I believe the
nature of the subject strictly requires . I employed most of them in my “ Report on
...
The Perigastric ** space is the space included between the walls of the endocyst
and the alimentary canal . The terms now enumerated are such as I believe the
nature of the subject strictly requires . I employed most of them in my “ Report on
...
Página 10
Phylactolæmata ( from pulaoow , to guard , and datua , the gullet , in allusion to
the epistome placed at the entrance of the alimentary canal ) corresponds in part
with the Hippocrepia of Gervais . The Hippocrepia of the French zoologist ...
Phylactolæmata ( from pulaoow , to guard , and datua , the gullet , in allusion to
the epistome placed at the entrance of the alimentary canal ) corresponds in part
with the Hippocrepia of Gervais . The Hippocrepia of the French zoologist ...
Página 15
The digestive system is very similar in all those species in which the lophophore
is bilateral ( Phylactolæmata ) ; these we shall therefore consider together ;
Paludicella , which , with the exception of Urnatella ( ? ) , is the only fresh - water
...
The digestive system is very similar in all those species in which the lophophore
is bilateral ( Phylactolæmata ) ; these we shall therefore consider together ;
Paludicella , which , with the exception of Urnatella ( ? ) , is the only fresh - water
...
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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 ..., Tema 28 George James Allman Vista de fragmentos - 1856 |
Términos y frases comunes
adherent admit Alcyonella alimentary canal Allman already anatomy animal appearance Ascidian attached become Beneden bodies branches branchial British cænæcium 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 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 represented 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