A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
Dentro del libro
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Página 7
... retracted or protruded according to the will of the animal , the retraction being accompanied by an invagination of the sac so as partially or entirely to include the oral tentacula within it ; and if to these characters we add the ...
... retracted or protruded according to the will of the animal , the retraction being accompanied by an invagination of the sac so as partially or entirely to include the oral tentacula within it ; and if to these characters we add the ...
Página 8
... retraction is the orifice of the cell . * Πολυποὺς , εἶδος . † Κοινὸς , οἰκίον . † Εκτος , κύστις . Επι , στομα . § ̓́Ενδον , κύστις . || Λόφος , φορέω . ** Περὶ , γαστὴρ . 1 1 3 I 1 Determination of Aspects . Another important point ...
... retraction is the orifice of the cell . * Πολυποὺς , εἶδος . † Κοινὸς , οἰκίον . † Εκτος , κύστις . Επι , στομα . § ̓́Ενδον , κύστις . || Λόφος , φορέω . ** Περὶ , γαστὴρ . 1 1 3 I 1 Determination of Aspects . Another important point ...
Página 10
... retracted state . Polypide completely retractile ; evagination perfect ; orifice of the cell with a moveable lip . } SUB - ORDERS . LOPHOPEA ( fresh - water ) . PEDICELLINEA ‡ ( marine ) . URNATELLEA ( fresh - water ) . PALUDICELLEA ...
... retracted state . Polypide completely retractile ; evagination perfect ; orifice of the cell with a moveable lip . } SUB - ORDERS . LOPHOPEA ( fresh - water ) . PEDICELLINEA ‡ ( marine ) . URNATELLEA ( fresh - water ) . PALUDICELLEA ...
Página 11
... retraction and exsertion consisting merely in an invagination and evagination of the anterior part of the cell . The cœnocium , in every case , except in Cristatella , is composed of two distinct membranes , which must be carefully ...
... retraction and exsertion consisting merely in an invagination and evagination of the anterior part of the cell . The cœnocium , in every case , except in Cristatella , is composed of two distinct membranes , which must be carefully ...
Página 12
... retracted state of the polypide . Near the spot where the endocyst passes into the tentacular sheath , there appears to exist , at least in Lophopus , a circular canal , which here passes transversely round the endocyst . The presence ...
... retracted state of the polypide . Near the spot where the endocyst passes into the tentacular sheath , there appears to exist , at least in Lophopus , a circular canal , which here passes transversely round the endocyst . The presence ...
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