A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign |
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... examined in a recent state , while the anatomical observations have been over and over again repeated for the purpose of verification , and many hundred specimens have thus passed beneath the dissecting needle .
... examined in a recent state , while the anatomical observations have been over and over again repeated for the purpose of verification , and many hundred specimens have thus passed beneath the dissecting needle .
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To the many friends who , by the communication of specimens , and by much valuable information , have kindly assisted me in the preparation of this monograph , I beg once for all to return my best thanks .
To the many friends who , by the communication of specimens , and by much valuable information , have kindly assisted me in the preparation of this monograph , I beg once for all to return my best thanks .
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In specimens of this Polyzoon which had been kept for a few days , and occasionally in some just captured , multitudes of minute oval brilliant corpuscles were seen to have been developed in the endocyst throughout its whole extent .
In specimens of this Polyzoon which had been kept for a few days , and occasionally in some just captured , multitudes of minute oval brilliant corpuscles were seen to have been developed in the endocyst throughout its whole extent .
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If a specimen of Alcyonella fungosa be cut into small pieces , under water , in the month of July or August , the ciliated embryos will be liberated in abundance , and may be examined with facility . Gemmation .
If a specimen of Alcyonella fungosa be cut into small pieces , under water , in the month of July or August , the ciliated embryos will be liberated in abundance , and may be examined with facility . Gemmation .
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After the decay of the concecium many of these attached statoblasts may be seen adherent to the stone or other body on which the specimen had developed itself , and to which they are now connected in lines ( Pl . VII , figs .
After the decay of the concecium many of these attached statoblasts may be seen adherent to the stone or other body on which the specimen had developed itself , and to which they are now connected in lines ( Pl . VII , figs .
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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 cćnćcium canal 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 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 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 |