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 1
... true Polypes , with which the Polyzoa had , until recent times , been confounded , without any suspicion of the wide interval by which they were really separated , that their historical statement will necessarily involve a rapid glance ...
... true Polypes , with which the Polyzoa had , until recent times , been confounded , without any suspicion of the wide interval by which they were really separated , that their historical statement will necessarily involve a rapid glance ...
Página 2
... true animals of the same nature as the Actiniæ of the rocks , whose animality was sufficiently obvious to leave no room for doubt , and that the hard stony coral was a peculiar habitation built by these creatures for their protection ...
... true animals of the same nature as the Actiniæ of the rocks , whose animality was sufficiently obvious to leave no room for doubt , and that the hard stony coral was a peculiar habitation built by these creatures for their protection ...
Página 3
... true bearing on systematic zoology , began to be appreciated . The investigations of Trembley and Baker , however , having clearly demonstrated , in the " Polype à Panache , " all the essential characters of polyzoal structure , must be ...
... true bearing on systematic zoology , began to be appreciated . The investigations of Trembley and Baker , however , having clearly demonstrated , in the " Polype à Panache , " all the essential characters of polyzoal structure , must be ...
Página 4
... true corals and madrepores , but of all those flexible and horny productions whose plant - like form was at such variance with every previously conceived notion of animal existence . It was not yet suspected that among these curious ...
... true corals and madrepores , but of all those flexible and horny productions whose plant - like form was at such variance with every previously conceived notion of animal existence . It was not yet suspected that among these curious ...
Página 5
... true radiate zoophytes never occurred to him , and he imagines the affinity with the Mollusca to be possessed by the entire group of his polypes à polypiers . " J'ai dit , " says he ( Exposition Méthodique des Genres de l'Ordre des ...
... true radiate zoophytes never occurred to him , and he imagines the affinity with the Mollusca to be possessed by the entire group of his polypes à polypiers . " J'ai dit , " says he ( Exposition Méthodique des Genres de l'Ordre des ...
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