A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign |
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Página 10
See the description of the genus farther on . The terms Cyclostomata , Ctenostomata , and Cheilostomata , were proposed by Busk , to indicate the primary subdivisions of the marine Gymnolæmatous Polyzoa . ( Voyage of " The Rattlesnake ...
See the description of the genus farther on . The terms Cyclostomata , Ctenostomata , and Cheilostomata , were proposed by Busk , to indicate the primary subdivisions of the marine Gymnolæmatous Polyzoa . ( Voyage of " The Rattlesnake ...
Página 11
... in a permanently inverted condition ; in this respect differing remarkably from the marine species , in which the evertion of the endocyst is , perhaps , in all cases , if we except the anomalous genus Pedicellina , complete .
... in a permanently inverted condition ; in this respect differing remarkably from the marine species , in which the evertion of the endocyst is , perhaps , in all cases , if we except the anomalous genus Pedicellina , complete .
Página 13
In Cristatella ( Pl . I ) the ectocyst would seem to be entirely absent ; and this genus . therefore , presents the anomalous condition of having the conccium composed exclusively of the endocyst . * * This view of the conccium of ...
In Cristatella ( Pl . I ) the ectocyst would seem to be entirely absent ; and this genus . therefore , presents the anomalous condition of having the conccium composed exclusively of the endocyst . * * This view of the conccium of ...
Página 19
Paludicella is the only fresh - water genus , if we except Urnatella , not yet sufficiently examined , in which not the slightest trace of bilaterality can be detected ( Pl . X , fig . 5 ) . With the exception of Pedicellina , which ...
Paludicella is the only fresh - water genus , if we except Urnatella , not yet sufficiently examined , in which not the slightest trace of bilaterality can be detected ( Pl . X , fig . 5 ) . With the exception of Pedicellina , which ...
Página 22
... unless Urnatella should prove to be an exception , which is not likely , though we are not yet sufficiently acquainted with the structure of the genus to include it in this generalization . In no marine polyzoon has a calyx yet been ...
... unless Urnatella should prove to be an exception , which is not likely , though we are not yet sufficiently acquainted with the structure of the genus to include it in this generalization . In no marine polyzoon has a calyx yet been ...
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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
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 |