Lectures on the Comparative Anatomy and Physiology of the Invertebrate Animals: Delivered at the Royal College of Surgeons, in 1843 |
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Page 12
... polype , than that they are animals , and have no vertebral columns , and the like negations . It was obvious also that there was no proportion or equivalency between the Vertebrate and the Invertebrate groups , and the idea of ...
... polype , than that they are animals , and have no vertebral columns , and the like negations . It was obvious also that there was no proportion or equivalency between the Vertebrate and the Invertebrate groups , and the idea of ...
Page 17
... polypes , worms , and insects from this motley and heterogeneous group , and have restricted it to those ani- mals which , in their fully developed states , manifest a form of body devoid of radiated arms or tentacles , more or less ...
... polypes , worms , and insects from this motley and heterogeneous group , and have restricted it to those ani- mals which , in their fully developed states , manifest a form of body devoid of radiated arms or tentacles , more or less ...
Page 33
... Polypes . By the vibration of these cilia , which occasions the appearance of little wheels in rapid motion , strong cur- rents are produced in the surrounding water , and they thus serve as the instruments for locomotion and the ...
... Polypes . By the vibration of these cilia , which occasions the appearance of little wheels in rapid motion , strong cur- rents are produced in the surrounding water , and they thus serve as the instruments for locomotion and the ...
Page 34
... Polypes , and also to the bivalve - sheathed Ento- mostraca . The loricate genera are Noteus , Anuraa , Brachionus , and Pterodina . In all the species the shell is a cylinder or case ( testula ) , not a mere shield ( scutellum ) . Horn ...
... Polypes , and also to the bivalve - sheathed Ento- mostraca . The loricate genera are Noteus , Anuraa , Brachionus , and Pterodina . In all the species the shell is a cylinder or case ( testula ) , not a mere shield ( scutellum ) . Horn ...
Page 35
... Polypes . The movements of the Rotifera are of a more varied character than those in the Polygastria ; they sometimes dart swiftly forwards ; at others glide leisurely along , or , anchoring themselves by their little . terminal ...
... Polypes . The movements of the Rotifera are of a more varied character than those in the Polygastria ; they sometimes dart swiftly forwards ; at others glide leisurely along , or , anchoring themselves by their little . terminal ...
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Common terms and phrases
abdomen alimentary canal analogous Anatomy Anellides animal animalcules antennæ aperture appendages Ascidians attached Belemnite bivalves blood body branchiæ branchial Bryozoa calcareous cavity cells cephalic Cephalopods chords ciliated cloth colour compound eyes consists Crustacea Cuvier developed digestive dilated Diseases distinct dorsal duct Edition elongated embryo Entozoa external extremity eyes female filaments fluid ganglion Gasteropods genus germinal vesicle gills glands head horny Infusoria insects integument interspace intestine jointed larva larvæ layer LECTURE legs locomotive London longitudinal male mandibles mantle margin mass maxillæ membrane metamorphosis minute Mollusca mouth muscles muscular fibres muscular system Nautilus nerves nervous system observed ocelli oesophagus organisation organs orifice ovaria oviduct ovum pair parasitic plates polypes posterior present processes radiated respiratory rudimental segments shell side siphon slender species spiders spines stomach structure surface tentacles tentacula terminal thorax tissue transverse tube tunic vascular ventral vesicle vessel visceral wings worm
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