A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
Dentro del libro
Resultados 6-10 de 28
Página 15
... admitting of a communication through its centre between two neighbouring cells . In Alcyonella fungosa , and in Fredericella sultana , imperfect septa may here and there be observed , while Cristatella and Lophopus would seem to be ...
... admitting of a communication through its centre between two neighbouring cells . In Alcyonella fungosa , and in Fredericella sultana , imperfect septa may here and there be observed , while Cristatella and Lophopus would seem to be ...
Página 16
... ( Pl . III , fig . 7 , ' ) . The structure of the pylorus is such as to admit of the orifice . * Lehrbuch der Vergleichenden Anatomie , ' § 38 , Note 1 . being dilated or contracted , or even completely closed . 16 DIGESTIVE SYSTEM .
... ( Pl . III , fig . 7 , ' ) . The structure of the pylorus is such as to admit of the orifice . * Lehrbuch der Vergleichenden Anatomie , ' § 38 , Note 1 . being dilated or contracted , or even completely closed . 16 DIGESTIVE SYSTEM .
Página 17
... admits of being traced uninterruptedly over the whole tract of the alimentary canal , and , on the application of acetic acid , becomes frequently raised from the subjacent layer . Delicate circular striæ may generally be distinctly ...
... admits of being traced uninterruptedly over the whole tract of the alimentary canal , and , on the application of acetic acid , becomes frequently raised from the subjacent layer . Delicate circular striæ may generally be distinctly ...
Página 22
... admit the by no means improbable supposition that it enters partly into the composition of the calyx - like cup ... admits 22 RESPIRATION AND CIRCULATION .
... admit the by no means improbable supposition that it enters partly into the composition of the calyx - like cup ... admits 22 RESPIRATION AND CIRCULATION .
Página 23
... admits . Meyen asserts the exist- ence of an aperture in the vicinity of the anus , through which , he tells us , he has witnessed the escape of an egg in Alcyonella ; * and Siebold admits the correctness of this statement , and ...
... admits . Meyen asserts the exist- ence of an aperture in the vicinity of the anus , through which , he tells us , he has witnessed the escape of an egg in Alcyonella ; * and Siebold admits the correctness of this statement , and ...
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