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 8
... Lophophore . || The Epistome is a peculiar valve - like organ which arches over the mouth in most of the fresh - water genera . The Perigastric ** space is the space included between the walls of the endocyst and the alimentary canal ...
... Lophophore . || The Epistome is a peculiar valve - like organ which arches over the mouth in most of the fresh - water genera . The Perigastric ** space is the space included between the walls of the endocyst and the alimentary canal ...
Página 10
... Lophophore bilateral ; mouth with an epistome . PHYLACTOLEMATA . * Lophophore orbicular , nearly so ; no epistome . GYMNOLÆMATA . † or Arms of lophophore free or obsolete . " } Arms of lophophore united at the extremities . at ...
... Lophophore bilateral ; mouth with an epistome . PHYLACTOLEMATA . * Lophophore orbicular , nearly so ; no epistome . GYMNOLÆMATA . † or Arms of lophophore free or obsolete . " } Arms of lophophore united at the extremities . at ...
Página 12
... lophophore , the fibres may be seen towards the apertures of the cells ( Pl . V , figs . 5 , 6 , v ) ; but it is generally impossible , in consequence of the increasing opacity of the superjacent structures , to trace these fibres to ...
... lophophore , the fibres may be seen towards the apertures of the cells ( Pl . V , figs . 5 , 6 , v ) ; but it is generally impossible , in consequence of the increasing opacity of the superjacent structures , to trace these fibres to ...
Página 15
... lophophore is bilateral ( Phylactolæmata ) ; these we shall therefore consider together ; Paludicella , which , with the exception of Urnatella ( ? ) , is the only fresh - water representative of the division with orbicular lophophore ...
... lophophore is bilateral ( Phylactolæmata ) ; these we shall therefore consider together ; Paludicella , which , with the exception of Urnatella ( ? ) , is the only fresh - water representative of the division with orbicular lophophore ...
Página 16
... lophophore , and consequently occupying the bottom of the tentacular crater . Its margin is slightly elevated , and is continuous on the neural side , with a hol ow valve - like organ ( e ) of very peculiar formation . This organ arches ...
... lophophore , and consequently occupying the bottom of the tentacular crater . Its margin is slightly elevated , and is continuous on the neural side , with a hol ow valve - like organ ( e ) of very peculiar formation . This organ arches ...
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