A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
Dentro del libro
Página 16
... orifice of a circular or slightly crescentic form , placed in the centre of the body of the lophophore , and ... orifice ( Pl . III , fig . 7 , ' ) . The structure of the pylorus is such as to admit of the orifice . * Lehrbuch der ...
... orifice of a circular or slightly crescentic form , placed in the centre of the body of the lophophore , and ... orifice ( Pl . III , fig . 7 , ' ) . The structure of the pylorus is such as to admit of the orifice . * Lehrbuch der ...
Página 17
... orifice , with slightly projectile margin , and is totally destitute of the valve - like appendage which , unless Urnatella should prove an exception , is found in all the other fresh - water species . The upper part of the œsophagus ...
... orifice , with slightly projectile margin , and is totally destitute of the valve - like appendage which , unless Urnatella should prove an exception , is found in all the other fresh - water species . The upper part of the œsophagus ...
Página 18
... orifice is lined with long vibratile cilia ( Pl . X , figs . 3 , 4 ) , by which portions of alimentary matter , pushed onwards by the peristaltic contractions of the stomach , are kept in a constant state of active rotation previously ...
... orifice is lined with long vibratile cilia ( Pl . X , figs . 3 , 4 ) , by which portions of alimentary matter , pushed onwards by the peristaltic contractions of the stomach , are kept in a constant state of active rotation previously ...
Página 21
... orifice , but separated from it by a considerable space . The intestine passes first forwards and towards the neural ... orifices , where it constitutes a dark brown glandular mass composed of distinct cells , which are filled with the ...
... orifice , but separated from it by a considerable space . The intestine passes first forwards and towards the neural ... orifices , where it constitutes a dark brown glandular mass composed of distinct cells , which are filled with the ...
Página 27
... orifice and invaginated tube to assume a regular quadrilateral figure . The corneous ribs already described correspond to the centre of the intervals between the insertion of the muscles . Mr. Hancock * enumerates , under the name of ...
... orifice and invaginated tube to assume a regular quadrilateral figure . The corneous ribs already described correspond to the centre of the intervals between the insertion of the muscles . Mr. Hancock * enumerates , under the name of ...
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