A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
Dentro del libro
Resultados 1-5 de 14
Página 12
... layer composed of a network of transverse and longitudinal fibres over the whole extent of the endocyst . I have even succeeded in separating this network as a continuous layer . There can be no doubt that these fibres of the endocyst ...
... layer composed of a network of transverse and longitudinal fibres over the whole extent of the endocyst . I have even succeeded in separating this network as a continuous layer . There can be no doubt that these fibres of the endocyst ...
Página 14
... layer of somewhat elongated cellules placed perpendicularly to its surface . The body which thus closes up the centre of the annular septum has , without doubt , some office to perform besides that of simply completing the septum ; but ...
... layer of somewhat elongated cellules placed perpendicularly to its surface . The body which thus closes up the centre of the annular septum has , without doubt , some office to perform besides that of simply completing the septum ; but ...
Página 17
... layer ( Pl . III , fig . 7 x ) , which is thrown into large longitudinal rugć . These rugć become less decided towards the fundus of the stomach , and in Paludicella they are entirely absent . This internal layer is composed of easily ...
... layer ( Pl . III , fig . 7 x ) , which is thrown into large longitudinal rugć . These rugć become less decided towards the fundus of the stomach , and in Paludicella they are entirely absent . This internal layer is composed of easily ...
Página 18
... layers ( Pl . III , fig . 7 , X ' , μ ' ) . These correspond to the middle and external layers of the stomach , the former being here largely developed ( A ' ) , while the internal or hepatic layer of the stomach is entirely absent ...
... layers ( Pl . III , fig . 7 , X ' , μ ' ) . These correspond to the middle and external layers of the stomach , the former being here largely developed ( A ' ) , while the internal or hepatic layer of the stomach is entirely absent ...
Página 20
... layers ( Pl . IX , fig . 5 ) enter into the structure of the tentacula . The external layer consists of rounded cells filled with a colourless fluid , and often presenting a bright nucleus . Some of those cells which lie upon the back ...
... layers ( Pl . IX , fig . 5 ) enter into the structure of the tentacula . The external layer consists of rounded cells filled with a colourless fluid , and often presenting a bright nucleus . Some of those cells which lie upon the back ...
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