A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
Dentro del libro
Resultados 1-5 de 26
Página 3
... crown of tentacula borne on the margin of a crescent - shaped disc . This beautiful tentacular plume is one of its most striking features ; and as Trembley naturally supposed his animal to be intimately related with the polypes , it ...
... crown of tentacula borne on the margin of a crescent - shaped disc . This beautiful tentacular plume is one of its most striking features ; and as Trembley naturally supposed his animal to be intimately related with the polypes , it ...
Página 11
... tentacular crown . During the exsertion of the polypide , the invaginated portion of the endocyst is carried out with the latter , thus undergoing a process of evertion , which , however , in all the fresh - water species , is but ...
... tentacular crown . During the exsertion of the polypide , the invaginated portion of the endocyst is carried out with the latter , thus undergoing a process of evertion , which , however , in all the fresh - water species , is but ...
Página 12
... tentacular crown . This thin , non - contractile portion of the endocyst constitutes the tentacular sheath which encloses and protects the tentacula during the retracted state of the polypide . Near the spot where the endocyst passes ...
... tentacular crown . This thin , non - contractile portion of the endocyst constitutes the tentacular sheath which encloses and protects the tentacula during the retracted state of the polypide . Near the spot where the endocyst passes ...
Página 19
... tentacular currents . It was these excrementitious pellets that Turpin mistook for unarmed ova in Cristatella . ( 3. ) Organs of Respiration and Circulation . Upon the tentacular crown and the walls of the perigastric space would seem ...
... tentacular currents . It was these excrementitious pellets that Turpin mistook for unarmed ova in Cristatella . ( 3. ) Organs of Respiration and Circulation . Upon the tentacular crown and the walls of the perigastric space would seem ...
Página 20
... tentacular crater so as entirely to disguise the hippocrepian 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 ...
... tentacular crater so as entirely to disguise the hippocrepian 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 ...
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