Animal Parasites and MessmatesD. Appleton and Company, 1876 - 274 pagini |
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Pagina xx
... which belong to the order of cestode and trema- tode worms . These flat and soft worms begin life usually as vagabonds , aided by a ciliary robe which serves as an apparatus for locomotion ; but scarcely have XX INTRODUCTION .
... which belong to the order of cestode and trema- tode worms . These flat and soft worms begin life usually as vagabonds , aided by a ciliary robe which serves as an apparatus for locomotion ; but scarcely have XX INTRODUCTION .
Pagina xxi
... usually with- out posterity . It is interesting to remark that these parasitical worms do not inhabit the various organs of their neighbours indiscriminately , but all begin their life modestly in an almost inaccessible attic , and end ...
... usually with- out posterity . It is interesting to remark that these parasitical worms do not inhabit the various organs of their neighbours indiscriminately , but all begin their life modestly in an almost inaccessible attic , and end ...
Pagina xxv
... usually live for the passing day ; and yet there are some which practise economy , which are not ignorant of the advantages of the savings bank , and , like the raven and the magpie , think of the morrow , to lay up in store the ...
... usually live for the passing day ; and yet there are some which practise economy , which are not ignorant of the advantages of the savings bank , and , like the raven and the magpie , think of the morrow , to lay up in store the ...
Pagina 1
... , and which provide for their own support at other times ; others are only messmates under certain given circumstances , and do not usually merit CHAPTER I ANIMAL MESSMATES Definition-Free Messmates-Fixed Messmates CHAPTER IX.
... , and which provide for their own support at other times ; others are only messmates under certain given circumstances , and do not usually merit CHAPTER I ANIMAL MESSMATES Definition-Free Messmates-Fixed Messmates CHAPTER IX.
Pagina 2
Pierre Joseph Beneden. under certain given circumstances , and do not usually merit this appellation . In the higher animals , this relation between them is generally well known , and justly appreciated , but it is not the same in the ...
Pierre Joseph Beneden. under certain given circumstances , and do not usually merit this appellation . In the higher animals , this relation between them is generally well known , and justly appreciated , but it is not the same in the ...
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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
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Pagina iv - II. Physics and Politics ; or, Thoughts on the Application of the Principles of "Natural Selection " and " Inheritance