A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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Página 7
Further , let us imagine the digestive tube thus constituted to be suspended in a
fluid contained in a membranous sac with two openings , one for the mouth and
the other for the vent ; the tentacula alone being external to the sac . Let us still ...
Further , let us imagine the digestive tube thus constituted to be suspended in a
fluid contained in a membranous sac with two openings , one for the mouth and
the other for the vent ; the tentacula alone being external to the sac . Let us still ...
Página 8
... 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
organically united ...
... 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
organically united ...
Página 11
These cells are filled with a perfectly colourless and transparent fluid . Under the
action of acetic acid each is distinctly seen to be bounded by a double outline ,
and to contain a large nucleus with nucleolus ( Pl . II , fig . 9 ) ; the nucleus , with
its ...
These cells are filled with a perfectly colourless and transparent fluid . Under the
action of acetic acid each is distinctly seen to be bounded by a double outline ,
and to contain a large nucleus with nucleolus ( Pl . II , fig . 9 ) ; the nucleus , with
its ...
Página 14
This gelatinous - looking investment is , however , a true ectocyst ; it consists of a
membranous tunic of great delicacy , apparently enclosing a perfectly transparent
and colourless fluid , probably in the meshes of a sort of areolar tissue .
This gelatinous - looking investment is , however , a true ectocyst ; it consists of a
membranous tunic of great delicacy , apparently enclosing a perfectly transparent
and colourless fluid , probably in the meshes of a sort of areolar tissue .
Página 15
It is quite insoluble in strong acetic acid , and in a concentrated solution of caustic
potash , even when exposed to prolonged boiling in these fluids , or after month -
long maceration in them ; but it is soluble in concentrated nitric , hydrochloric ...
It is quite insoluble in strong acetic acid , and in a concentrated solution of caustic
potash , even when exposed to prolonged boiling in these fluids , or after month -
long maceration in them ; but it is soluble in concentrated nitric , hydrochloric ...
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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 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 cænæcium canal cavity cell character cilia closely complete condition connected consists constitutes contained continuous corresponding Cristatella crown 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 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 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 | Biblioteca Nacional de Austria |
| Digitalizado | 12 Mayo 2011 |
| Largo | 119 páginas |
| Exportar cita | BiBTeX EndNote RefMan |