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 48
... tunics of the Tunicata with the ectocyst and endocyst of the Polyzoa is obvious , and need not here be further dwelt on . The homology of the third or innermost tunic of the Tunicata may perhaps , at first sight , not appear quite so ...
... tunics of the Tunicata with the ectocyst and endocyst of the Polyzoa is obvious , and need not here be further dwelt on . The homology of the third or innermost tunic of the Tunicata may perhaps , at first sight , not appear quite so ...
Página 49
... tunic in Clavelina ( see figs . 6 , 7 , page 44 ) we shall find that it is continuous with the mantle at the respiratory and cloacal orifices , and becomes attached to the alimentary canal just behind the mouth and anus ; it thus holds ...
... tunic in Clavelina ( see figs . 6 , 7 , page 44 ) we shall find that it is continuous with the mantle at the respiratory and cloacal orifices , and becomes attached to the alimentary canal just behind the mouth and anus ; it thus holds ...
Página 50
... tunic ; it is , consequently , within the great " sinus system of the Tunicata , which corresponds exactly with the ... tunics in the Tunicata . It is that through which the blood unenclosed in proper vessels vaguely circulates . Loc ...
... tunic ; it is , consequently , within the great " sinus system of the Tunicata , which corresponds exactly with the ... tunics in the Tunicata . It is that through which the blood unenclosed in proper vessels vaguely circulates . Loc ...
Página 51
... tunic ) and internally by the pharynx , becomes perforated by minute apertures - and the result would be an Ascidian . " ‡ Now , if the above be an exact statement of the true morphology of the Ascidian , it is inconsistent with the ...
... tunic ) and internally by the pharynx , becomes perforated by minute apertures - and the result would be an Ascidian . " ‡ Now , if the above be an exact statement of the true morphology of the Ascidian , it is inconsistent with the ...
Página 70
... tunic ; it was shown that the latter muscles consisted of two distinct sets , an anterior and a posterior , whose peculiar arrangement was pointed out . On the same occasion I presented to the meeting a short paper , containing a ...
... tunic ; it was shown that the latter muscles consisted of two distinct sets , an anterior and a posterior , whose peculiar arrangement was pointed out . On the same occasion I presented to the meeting a short paper , containing 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 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