A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
Dentro del libro
Resultados 1-5 de 35
Página
... excuse for the lateness of its appearance . MONOGRAPH OF THE FRESH -
WATER POLYZOA . Among the viii PREFACE .
... excuse for the lateness of its appearance . MONOGRAPH OF THE FRESH -
WATER POLYZOA . Among the viii PREFACE .
Página 1
... now again presenting the appearance of the most delicate and exquisitely
formed sea - weed or moss , offering , even to the unassisted eye , in the endless
repetition of the same element of form , objects of surpassing symmetry and
beauty .
... now again presenting the appearance of the most delicate and exquisitely
formed sea - weed or moss , offering , even to the unassisted eye , in the endless
repetition of the same element of form , objects of surpassing symmetry and
beauty .
Página 13
The perfectly transparent wide origin of this line gives to the orifice of the cell the
appearance of having a deep notch on one side . In Fredericella a slightly
prominent keel is also apparent , but the notch - like transparent space does not
here ...
The perfectly transparent wide origin of this line gives to the orifice of the cell the
appearance of having a deep notch on one side . In Fredericella a slightly
prominent keel is also apparent , but the notch - like transparent space does not
here ...
Página 18
... while the internal or hepatic layer of the stomach is entirely absent , and there
are no longitudinal rugć . The mouth and upper part of the ćsophagus are in all
the genera clothed with vibratile cilia , but I could detect no appearance of cilia ...
... while the internal or hepatic layer of the stomach is entirely absent , and there
are no longitudinal rugć . The mouth and upper part of the ćsophagus are in all
the genera clothed with vibratile cilia , but I could detect no appearance of cilia ...
Página 19
The general appearance of Pedicellina is that of a gymnolćmatous Polyzoon
with its nearly spherical cell seated on the extremity of a long peduncle . The
gymnolćmatous character , however , is wholly deceptive , and depends on a ...
The general appearance of Pedicellina is that of a gymnolćmatous Polyzoon
with its nearly spherical cell seated on the extremity of a long peduncle . The
gymnolćmatous character , however , is wholly deceptive , and depends on a ...
Comentarios de la gente - Escribir un comentario
No encontramos ningún comentario en los lugares habituales.
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 admit Alcyonella alimentary canal Allman already anatomy animal appearance Ascidian attached become Beneden bodies branches branchial British cćnćcium cavity cell character cilia closely complete condition connected consists constitutes contained continuous corresponding Cristatella described detected disc distinct Dumortier ectocyst edit endocyst entire epistome examined existence extending external extremity fibres fluid Fredericella fresh-water Polyzoa genera genus Gervais gives Hist important internal latter layer Leidy lophophore Lophopus margin mass Mém membrane memoir minute mouth muscles Natural naturalists nearly observed occur organ orifice Original figures Paludicella passes Plumatella Plumatella repens Polype polypide Polyzoon portion present published relations repens represented resemblance retraction retractor Rösel seen separated sheath side space species specimens statoblasts stomach stones structure surface surrounding tentacula transparent transverse Trembley true tubes Tubularia tunic Tunicata walls whole young