Animal Parasites and MessmatesD. Appleton and Company, 1876 - 274 pagini |
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Pagina xviii
... means live at the expense of their hosts . When a copepode crustacean instals himself in the pantry of an ascidian , and filches from him some dainty morsel , as it passes by ; when a benevolent animal renders some service to his ...
... means live at the expense of their hosts . When a copepode crustacean instals himself in the pantry of an ascidian , and filches from him some dainty morsel , as it passes by ; when a benevolent animal renders some service to his ...
Pagina xxv
... means of safety except in abandoning his load . We must not , however , be too hard upon all this class , since very often , as in the case of the gnat , it is only one of the sexes which seeks a victim . All animals usually live for ...
... means of safety except in abandoning his load . We must not , however , be too hard upon all this class , since very often , as in the case of the gnat , it is only one of the sexes which seeks a victim . All animals usually live for ...
Pagina 5
... means of fishing . Dr. Greef , at present Professor at Marbourg , found at Madeira a holothuria of a foot in length , in which a vigorous Fierasfer lived in peace . Quoy and Gaimard , in the account of their voyage round the world ...
... means of fishing . Dr. Greef , at present Professor at Marbourg , found at Madeira a holothuria of a foot in length , in which a vigorous Fierasfer lived in peace . Quoy and Gaimard , in the account of their voyage round the world ...
Pagina 14
... means of communication with the outer world . Parasites and messmates , fur- nished at first with the same kind of limbs and the same habits , can sometimes only be distinguished from each 14 ANIMAL PARASITES AND MESSMATES .
... means of communication with the outer world . Parasites and messmates , fur- nished at first with the same kind of limbs and the same habits , can sometimes only be distinguished from each 14 ANIMAL PARASITES AND MESSMATES .
Pagina 29
... means of passing unobserved , and of escaping from the sight of the enemy that is watching them . Naturalists have given the name of Anilocræ to some of these free messmates . Any one who has remained for some time on the coast of ...
... means of passing unobserved , and of escaping from the sight of the enemy that is watching them . Naturalists have given the name of Anilocræ to some of these free messmates . Any one who has remained for some time on the coast of ...
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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