A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
Dentro del libro
Resultados 1-5 de 12
Página 6
... and the Polyzoa , therefore , long continued to be classed with the Polypes , of
which they were still considered as a group , though with distinct peculiarities ,
through which the Polypes manifested an affinity with the Tunicata . It is not easy
to ...
... and the Polyzoa , therefore , long continued to be classed with the Polypes , of
which they were still considered as a group , though with distinct peculiarities ,
through which the Polypes manifested an affinity with the Tunicata . It is not easy
to ...
Página 15
The fact of cellulose being a constituent of the test of the Tunicata , induced me to
look for it in the ectocyst of the Polyzoa , but I have never succeeded in obtaining
satisfactory evidence of its existence in any of the tissues of the Polyzoa , either ...
The fact of cellulose being a constituent of the test of the Tunicata , induced me to
look for it in the ectocyst of the Polyzoa , but I have never succeeded in obtaining
satisfactory evidence of its existence in any of the tissues of the Polyzoa , either ...
Página 43
One of these , the Molluscoida , included the Polyzoa and Tunicata ; the other ,
the Mollusca proper , embraced all the other members of the molluscan sub -
kingdom . The affinities of the Tunicata and Polyzoa being thus fully recognised ,
it is ...
One of these , the Molluscoida , included the Polyzoa and Tunicata ; the other ,
the Mollusca proper , embraced all the other members of the molluscan sub -
kingdom . The affinities of the Tunicata and Polyzoa being thus fully recognised ,
it is ...
Página 46
This ganglion is certainly homologous in the Tunicata and Polyzoa , and it is
manifestly it , and not the mouth , that determines the place of the persistent
languet . We now need only a few unimportant modifications in order to complete
the ...
This ganglion is certainly homologous in the Tunicata and Polyzoa , and it is
manifestly it , and not the mouth , that determines the place of the persistent
languet . We now need only a few unimportant modifications in order to complete
the ...
Página 47
Now nearly all the changes which we have thus hypothetically supposed to take
place in Clavelina , in order to convert its branchial sac into the tentacular crown
of Plumatella , do actually occur in other genera of Tunicata , some in one , and ...
Now nearly all the changes which we have thus hypothetically supposed to take
place in Clavelina , in order to convert its branchial sac into the tentacular crown
of Plumatella , do actually occur in other genera of Tunicata , some in one , and ...
Comentarios de la gente - Escribir un comentario
No encontramos ningún comentario en los lugares habituales.
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
adherent admit Alcyonella alimentary alimentary canal Allman already anatomy animal appearance Ascidian attached become Beneden bodies branches branchial British cćnćcium canal cavity cell character cilia closely complete condition connected consists constitutes contained continuous 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 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
Información bibliográfica
| Título | A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, George James Allman Volumen13 de DE-601)130488305: Ray Society Publications, Ray Society Ray Society, Ray Society Volumen28 de Ray society ... [Publications |
| Autor | George James Allman |
| Editor | Ray Society, 1856 |
| Procedencia del original | la Biblioteca Estatal de Baviera |
| Digitalizado | 13 Nov. 2009 |
| Largo | 119 páginas |
| Exportar cita | BiBTeX EndNote RefMan |