A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign |
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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 Ascidia , and was the first to designate them by a ...
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 Ascidia , and was the first to designate them by a ...
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 œsophagus , stomach , and intestine , to be ...
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 œsophagus , stomach , and intestine , to be ...
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 ...
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 ...
Página 10
Phylactolæmata ( from puλáoow , to guard , and λaqua , 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 ...
Phylactolæmata ( from puλáoow , to guard , and λaqua , 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 ...
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 ( ? ) ...
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 ( ? ) ...
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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