A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
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Página 7
... muscle . Let us imagine an alimentary canal , consisting of œsophagus , stomach , and intestine , to be furnished at its ... muscles , to admit of being retracted or protruded according to the will of the animal , the retraction being ...
... muscle . Let us imagine an alimentary canal , consisting of œsophagus , stomach , and intestine , to be furnished at its ... muscles , to admit of being retracted or protruded according to the will of the animal , the retraction being ...
Página 8
... muscles , generative organs , circumambient fluid , and investing sacs , repeating itself by gemmation , and thus producing one or more precisely similar systems holding a definite position relatively to one another , while all continue ...
... muscles , generative organs , circumambient fluid , and investing sacs , repeating itself by gemmation , and thus producing one or more precisely similar systems holding a definite position relatively to one another , while all continue ...
Página 12
... muscular , and that it is to their presence that the high degree of contractility enjoyed by the endocyst of Lophopus is in a great measure , if not entirely , due . When treated with acetic acid , they are plainly seen to be composed ...
... muscular , and that it is to their presence that the high degree of contractility enjoyed by the endocyst of Lophopus is in a great measure , if not entirely , due . When treated with acetic acid , they are plainly seen to be composed ...
Página 16
... muscular fibres ( n ) , which are visible through the transparent walls , and will be afterwards more particularly described , while the depression is probably the result of an antagonistic elasticity . I propose to designate this organ ...
... muscular fibres ( n ) , which are visible through the transparent walls , and will be afterwards more particularly described , while the depression is probably the result of an antagonistic elasticity . I propose to designate this organ ...
Página 17
... stomach , and are probably muscular fibres ; they are particularly evident in Alcyonella and Plumatella towards the fundus of the stomach ; they become less distinct as we ascend toward the oesophagus , and totally 3 DIGESTIVE SYSTEM . 17.
... stomach , and are probably muscular fibres ; they are particularly evident in Alcyonella and Plumatella towards the fundus of the stomach ; they become less distinct as we ascend toward the oesophagus , and totally 3 DIGESTIVE SYSTEM . 17.
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