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 11
... examine the endocyst histologically , we shall find that it possesses a very distinct structure . In Lophopus , which is particularly well adapted for observing the intimate structure of this membrane , we find it composed of large ...
... examine the endocyst histologically , we shall find that it possesses a very distinct structure . In Lophopus , which is particularly well adapted for observing the intimate structure of this membrane , we find it composed of large ...
Página 15
... examined by itself . * See Schlossberger , Zur näheren Kenntniss der Mushelschalen , des Byssus und der Chitinfrage 6 Ann . der Chem , und Pharm . , ' xcviii , 99 . a . Phylactolæmata . The mouth ( Pl . II DIGESTIVE SYSTEM . 15.
... examined by itself . * See Schlossberger , Zur näheren Kenntniss der Mushelschalen , des Byssus und der Chitinfrage 6 Ann . der Chem , und Pharm . , ' xcviii , 99 . a . Phylactolæmata . The mouth ( Pl . II DIGESTIVE SYSTEM . 15.
Página 17
... examining it , I have succeeded in detecting in the stomach three distinct layers . Internally is a yellowish - brown layer ( Pl . III , fig . 7 x ) , which is thrown into large longitudinal rugæ . These rugæ become less decided towards ...
... examining it , I have succeeded in detecting in the stomach three distinct layers . Internally is a yellowish - brown layer ( Pl . III , fig . 7 x ) , which is thrown into large longitudinal rugæ . These rugæ become less decided towards ...
Página 18
... examined is highly irritable , the presence of alimentary matter stimulating it to rapid and vigorous contraction . The whole course of the alimentary matter , from the moment of its prehension to its final ejection , may be easily ...
... examined is highly irritable , the presence of alimentary matter stimulating it to rapid and vigorous contraction . The whole course of the alimentary matter , from the moment of its prehension to its final ejection , may be easily ...
Página 19
... examination will render manifest its departure from the orbicular form , the side corresponding to the arms of the crescent ... examined , in which not the slightest trace of bilaterality can be detected ( Pl . X , fig . 5 ) . With the ...
... examination will render manifest its departure from the orbicular form , the side corresponding to the arms of the crescent ... examined , in which not the slightest trace of bilaterality can be detected ( Pl . X , fig . 5 ) . With the ...
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