Animal Parasites and MessmatesD. Appleton and Company, 1876 - 274 pagini |
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Pagina 18
... appearance of all living creatures ; that they have all come into existence , not according to the chance ar- rangement of surrounding media , but according to the laws established from the very origin of all things ? The shell which ...
... appearance of all living creatures ; that they have all come into existence , not according to the chance ar- rangement of surrounding media , but according to the laws established from the very origin of all things ? The shell which ...
Pagina 24
... appearance , that it introduces itself everywhere without provoking the least suspicion . It is usually covered with a colony of Hydractiniæ , and in the interior , Peltogasters , Lyriopes , and other crustaceans often establish them ...
... appearance , that it introduces itself everywhere without provoking the least suspicion . It is usually covered with a colony of Hydractiniæ , and in the interior , Peltogasters , Lyriopes , and other crustaceans often establish them ...
Pagina 28
... appearance . Several naturalists have already endeavoured to give the life - history of this singular Bopyrian . The illustrious Rathke of Königsberg dis- covered it ; Professor Lilljeborg , of the University of Upsal , gave the first ...
... appearance . Several naturalists have already endeavoured to give the life - history of this singular Bopyrian . The illustrious Rathke of Königsberg dis- covered it ; Professor Lilljeborg , of the University of Upsal , gave the first ...
Pagina 53
... appearance , but their organs intended for fishing or for locomotion . It is not thus with those which we are now about to consider ; they are free in their youth , but as they draw near to puberty they make choice of a host , instal ...
... appearance , but their organs intended for fishing or for locomotion . It is not thus with those which we are now about to consider ; they are free in their youth , but as they draw near to puberty they make choice of a host , instal ...
Pagina 64
... appearance , very often affords examples of animals which live with them as true messmates ; and we find the same relations established between them in both hemispheres . As we observe rhizophales on crabs and soldier - crabs , and ...
... appearance , very often affords examples of animals which live with them as true messmates ; and we find the same relations established between them in both hemispheres . As we observe rhizophales on crabs and soldier - crabs , and ...
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Termeni și expresii frecvente
abdomen abode acaridæ acarus amphipod animal annelids appearance Ascaris attacks become birds blood body Bothriocephalus Caligi carapace cavity cercaria cercariæ cestode cetacea ciliated cirrhipedes coast colour completely crab creatures crustaceans curious cysticerci cysticercus damp earth decapod distome echinoderm eggs embryos enclosed encysted female fish fleas gasteropod genus gives lodging harbours hatched hermaphrodite hooks host hymenoptera ichneumons infested inhabit insects intestines introduced isopod kind known larva larvæ leeches Leuckart live male manner messmates microscopic midst molluscs Mons mother mouth Müller natural naturalists neighbour nematode nourishment observed organs pagurus pass peculiar peritoneum pinnotheres plants polyps present prey produce Prof Professor Semper progeny remarkable resemble scolex seek sexes sexual sheep shell shelter side skin sometimes species sponge stomach Strongylus sucker tænia tæniæ Tania tape-worm trematode trichinæ usually whale worms young
Pasaje populare
Pagina iv - II. Physics and Politics ; or, Thoughts on the Application of the Principles of "Natural Selection " and " Inheritance