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 11
... transparent , and contractile ; and an external , the ectocyst , which varies greatly in character in the different genera . The endocyst ( Pl . III , fig . 7 ; V , figs . 5 , 6 ; IX , fig . 7 ; X , fig . 4 , a ) lines the interior of ...
... transparent , and contractile ; and an external , the ectocyst , which varies greatly in character in the different genera . The endocyst ( Pl . III , fig . 7 ; V , figs . 5 , 6 ; IX , fig . 7 ; X , fig . 4 , a ) lines the interior of ...
Página 12
... transparent ectocyst admits of a distinct view of all the contained parts , the fibres are collected into numerous transverse bands ( Pl . X , figs . 3 , 4 , v ) , which we may trace throughout the whole extent of the cell . 1 I 1 I ...
... transparent ectocyst admits of a distinct view of all the contained parts , the fibres are collected into numerous transverse bands ( Pl . X , figs . 3 , 4 , v ) , which we may trace throughout the whole extent of the cell . 1 I 1 I ...
Página 13
... transparency and want of colour of their contents , they escape detection under ordinary circumstances , and are first ... transparent space does not here exist . In Cristatella ( Pl . I ) the ectocyst would seem to be entirely absent ...
... transparency and want of colour of their contents , they escape detection under ordinary circumstances , and are first ... transparent space does not here exist . In Cristatella ( Pl . I ) the ectocyst would seem to be entirely absent ...
Página 14
... transparent and colourless fluid , probably in the meshes of a sort of areolar tissue . I have not , however , succeeded in making out in it any distinct structure , but its membranous nature becomes at once manifest when the animal has ...
... transparent and colourless fluid , probably in the meshes of a sort of areolar tissue . I have not , however , succeeded in making out in it any distinct structure , but its membranous nature becomes at once manifest when the animal has ...
Página 16
... transparent , and destitute of cilia . It may be observed , when the polypide is exserted from its cell , to be in a constant motion , which consists in an alternate elevation and depression of the organ . The elevation is effected by ...
... transparent , and destitute of cilia . It may be observed , when the polypide is exserted from its cell , to be in a constant motion , which consists in an alternate elevation and depression of the organ . The elevation is effected by ...
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
Información bibliográfica
| Título | A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign Volumen18 de ¬The Ray Society |
| 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 |