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 10
... character of groups more comprehensive than those of generic rank . + Gymnolæmata ( from yuuvos , naked , and λaqua , in allusion to the absence of an epistome ) corresponds to part of the Infundibulata of Gervais . For the structure of ...
... character of groups more comprehensive than those of generic rank . + Gymnolæmata ( from yuuvos , naked , and λaqua , in allusion to the absence of an epistome ) corresponds to part of the Infundibulata of Gervais . For the structure of ...
Página 11
... character in the different genera . The endocyst ( Pl . III , fig . 7 ; V , figs . 5 , 6 ; IX , fig . 7 ; X , fig . 4 , a ) lines the interior of the cells , and when it arrives at their apertures would protrude beyond the ectocyst were ...
... character in the different genera . The endocyst ( Pl . III , fig . 7 ; V , figs . 5 , 6 ; IX , fig . 7 ; X , fig . 4 , a ) lines the interior of the cells , and when it arrives at their apertures would protrude beyond the ectocyst were ...
Página 19
... character , however , is wholly deceptive , and depends on a remarkable condition of the lophophore , which , though at first sight orbicular , is truly bilateral and phylactolæmatous , but nevertheless constructed on a type peculiar to ...
... character , however , is wholly deceptive , and depends on a remarkable condition of the lophophore , which , though at first sight orbicular , is truly bilateral and phylactolæmatous , but nevertheless constructed on a type peculiar to ...
Página 20
... character , and give to the crown of tentacula the form presented by the infundibulate genera . The result of this arrangement is , that the anus presents the anomalous condition of opening within the tentacular crater . It will be ...
... character , and give to the crown of tentacula the form presented by the infundibulate genera . The result of this arrangement is , that the anus presents the anomalous condition of opening within the tentacular crater . It will be ...
Página 51
... characters of a Polyzoon . In deriving the ascidian form from the archetype , " it is to be remarked , " he says , “ in the first place , that the pharynx , large in the Polyzoa , becomes comparatively enormous in the Ascidians ; while ...
... characters of a Polyzoon . In deriving the ascidian form from the archetype , " it is to be remarked , " he says , “ in the first place , that the pharynx , large in the Polyzoa , becomes comparatively enormous in the Ascidians ; while ...
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
adherent Alcyonella Alcyonella fungosa Alcyonella stagnorum alimentary canal Allman anatomy animal annulus Ascidian attached become Beneden Bowerbankia Brachiopoda branches branchial sac Brit Brux campanulata cavity cell cilia cœnocium crescentic Cristatella Cristatella mucedo d'eau douce described Difflugia disc distinct Dumortier ectocyst embryo endocyst epistome exserted external fibres flabellum fluid fresh-water Polyzoa funiculus ganglion genera genus Gervais hæmal Hancock hippocrepian Hist homologous intestine invaginated l'Acad Lamarck layer Leidy Linnæus lophophore Lophopus crystallinus margin Mém membrane memoir Meyen mouth Müller Naisa naturalists observed œsophagus organ orifice Original figures ovary ovum Paludicella parieto-vaginal muscles peculiar Pedicellina perigastric space Plumatella repens Polype à Panache polypide Polyzoon portion posterior present Raspail respiratory retraction retractor retractor muscles Rösel seen septa side species specimens statoblasts stomach structure surface tentacles tentacula tentacular crown tentacular sheath thoracic chamber transparent transverse Trembley tubes Tubularia repens tunic Tunicata Urnatella walls Zooph Zoophytes