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
... Lophopus , which is particularly well adapted for observing the intimate structure of this membrane , we find it composed of large irregularly shaped cells , widely separated from each other by an intervening substance towards the ...
... Lophopus , which is particularly well adapted for observing the intimate structure of this membrane , we find it composed of large irregularly shaped cells , widely separated from each other by an intervening substance towards the ...
Página 12
... Lophopus , a circular canal , which here passes transversely round the endocyst . The presence of this canal is revealed by peculiar , spherical or oval , brilliant corpuscles , which it almost always contains in Lophopus . A portion ...
... Lophopus , a circular canal , which here passes transversely round the endocyst . The presence of this canal is revealed by peculiar , spherical or oval , brilliant corpuscles , which it almost always contains in Lophopus . A portion ...
Página 13
... Lophopus , though most probably only abnormal , must be mentioned here . 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 ...
... Lophopus , though most probably only abnormal , must be mentioned here . 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 ...
Página 14
Including All the Known Species, Both British and Foreign George James Allman. Lophopus , also , at first sight , conveys the impression of being destitute of an ectocyst , and having the place of this tunic supplied by a peculiar ...
Including All the Known Species, Both British and Foreign George James Allman. Lophopus , also , at first sight , conveys the impression of being destitute of an ectocyst , and having the place of this tunic supplied by a peculiar ...
Página 15
... Lophopus would seem to be quite deprived of them , the cells in these genera all opening into one another . The ectocyst of the fresh - water Polyzoa appears in every case to be absolutely structureless . The fact of cellulose being a ...
... Lophopus would seem to be quite deprived of them , the cells in these genera all opening into one another . The ectocyst of the fresh - water Polyzoa appears in every case to be absolutely structureless . The fact of cellulose being a ...
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