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 9
... of Polyzoa , both marine and fresh - water , admit of being arranged : * ' English Cyclopædia , ' 1855 , article " Mollusca ; " and ' Phil . Trans . , ' 1853 . ORDERS . SUB - ORDERS . Lophophore bilateral ; mouth 2 ASPECTS . 9.
... of Polyzoa , both marine and fresh - water , admit of being arranged : * ' English Cyclopædia , ' 1855 , article " Mollusca ; " and ' Phil . Trans . , ' 1853 . ORDERS . SUB - ORDERS . Lophophore bilateral ; mouth 2 ASPECTS . 9.
Página 10
... lophophore united at the extremities . Polypide only partially re- tractile ? Polypide completely retractile ; } Arms of lophophore free or obsolete . or } LOPHOPEA ( fresh - water ) . PEDICELLINEA ‡ ( marine ) . re- } URNATELLEA ...
... lophophore united at the extremities . Polypide only partially re- tractile ? Polypide completely retractile ; } Arms of lophophore free or obsolete . or } LOPHOPEA ( fresh - water ) . PEDICELLINEA ‡ ( marine ) . re- } URNATELLEA ...
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 ...
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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 character cilia cœnæcium 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 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