 | Prideaux John Selby, William Jardine - 1837 - 664 pagine
...of putrid air which might otherwise ensue ; whilst they in their turn become a prey to other insects which no doubt serve their purposes also in the economy of nature. The fresh water Gammari seem to prey upon them, and the Hydrachnse are their decided enemies, for, says... | |
 | 1852 - 440 pagine
...decided fitness in these entomostraca being carnivorous, thus helping to prevent the noxious effect of putrid air which might otherwise ensue, whilst...prey to other animals, which, no doubt, serve their purpose also in the economy of nature.'' The arrangement which permits one tribe of animals to prey... | |
 | Charles Knight - 1866 - 588 pagine
...deterioration of the surrounding atmosphere which might ensue from the putrefaction of their dead bodies, wo see a decided fitness in these Entomostraca being...fresh-water Gammari seem to prey upon them, and the Hydrachnce are their decided enemies; 'for,' says Miiller, 'they seize hold of them while swimming... | |
 | Charles Knight - 1867 - 630 pagine
...might ensue from the putrefaction of their dead bodies, we see a decided fitness in these Entomoatraca being carnivorous, thus helping to prevent the noxious...fresh-water Gammari seem to prey upon them, and the ffydrachna; are their decided enemies; 'for,' says Müller, 'they seize hold of them while swimming... | |
 | Mordecai Cubitt Cooke - 1880 - 282 pagine
...decided fitness in these Entomostraca being carnivorous, thus helping to prevent the noxiouseffects of putrid air, which might otherwise ensue; whilst...animals, which no doubt serve their purposes also iu the economy of nature." CHAPTER XIV. AQUATIC LARVJE. THE higher forms of animal life have been included... | |
 | 1882 - 528 pagine
...Entomostraca, such, for example, as the Daphniœ, Chirocephali, Lyncci, &c., in a vessel with pure, clear water, and only some vegetable matters in it, and...their purposes also in the economy of nature." "The food of the Lynceidœ," says Baird, "consists of both animal and vegetable matter, and while they prey... | |
 | United States Fish Commission - 1882 - 528 pagine
...might ensue from the putrefaction of their dead bodies, we see a decided fitness in these Eutomostraca being carnivorous, thus helping to prevent the noxious...their purposes also in the economy of nature." "The food of the Lynceida;," says Baird, "consists of both animal and vegetable matter, and while they prey... | |
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... see a decided fitness in these Entomostraca being carnivorous, thus helping to prevent the noxious effects of putrid air which might otherwise ensue ; whilst they in their turn become a prey to other animals, which no doubt serve their purposes also... 