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 53
... first trace of special organs show itself in the formation of an internal closed cavity , the primary sketch of the ... figures , while the rod - like gill is developed in the interior of the branchial cham- ber , in all essential ...
... first trace of special organs show itself in the formation of an internal closed cavity , the primary sketch of the ... figures , while the rod - like gill is developed in the interior of the branchial cham- ber , in all essential ...
Página 56
... HISTORY AND BIBLIOGRAPHY . We have already seen that in the year 1741 , Trembley discovered his " Polype à Panache . " This is the first ... figures ; the description is wonderfully accurate , and the anatomical details have been in few ...
... HISTORY AND BIBLIOGRAPHY . We have already seen that in the year 1741 , Trembley discovered his " Polype à Panache . " This is the first ... figures ; the description is wonderfully accurate , and the anatomical details have been in few ...
Página 58
... figures he reproduces ; the other is probably Alcyonella . In Baker's Employment for the Microscope , ' published in 1753 , † we have , under the name of " The Bellflower ... figures of the external characters are tolerably good 58 HISTORY .
... figures he reproduces ; the other is probably Alcyonella . In Baker's Employment for the Microscope , ' published in 1753 , † we have , under the name of " The Bellflower ... figures of the external characters are tolerably good 58 HISTORY .
Página 59
... figures of the external characters are tolerably good , with the exception ... first time designated by a generic and specific name . * The " Feder- busch ... characters of the Polyzoon , and a magnified but not very correct view of the ...
... figures of the external characters are tolerably good , with the exception ... first time designated by a generic and specific name . * The " Feder- busch ... characters of the Polyzoon , and a magnified but not very correct view of the ...
Página 60
... figure of it in his Manual of Natural History , ' published in 1779.§ It is at once distinguished from all previously described fresh- water Polyzoa by the tentacula being disposed in a circle , instead of presenting the form of a ...
... figure of it in his Manual of Natural History , ' published in 1779.§ It is at once distinguished from all previously described fresh- water Polyzoa by the tentacula being disposed in a circle , instead of presenting the form of a ...
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 crescentic Cristatella Cristatella mucedo d'eau douce described Difflugia disc distinct Dumortier ectocyst Ehrenbergi 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 longitudinal lophophore Lophopus crystallinus margin Mém membrane memoir Meyen mouth Müller Naisa naturalists observed oesophagus 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