Animal Parasites and MessmatesD. Appleton and Company, 1876 - 274 pagini |
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Pagina xxiii
... sexual singu- larity , lately observed , of males and females of different kinds in one and the same species , and which give birth to progeny which do not resemble each other ; the same animals , or rather the same species , proceed ...
... sexual singu- larity , lately observed , of males and females of different kinds in one and the same species , and which give birth to progeny which do not resemble each other ; the same animals , or rather the same species , proceed ...
Pagina 38
... sexual tubes . At present we must admit that it is the result of a retrogres- sive development like that of the peltogasters , which , like them , lose all the attributes of their class . They ought , perhaps , to be placed farther on ...
... sexual tubes . At present we must admit that it is the result of a retrogres- sive development like that of the peltogasters , which , like them , lose all the attributes of their class . They ought , perhaps , to be placed farther on ...
Pagina 45
... sexual evolution . Mons . Ulianin has recently found another Distome ( Distomum ventricosum ) which passes its cercarial life in freedom in the bay of Sebastopol , and completes its evolu- tion in the fishes of the Black Sea . J. Müller ...
... sexual evolution . Mons . Ulianin has recently found another Distome ( Distomum ventricosum ) which passes its cercarial life in freedom in the bay of Sebastopol , and completes its evolu- tion in the fishes of the Black Sea . J. Müller ...
Pagina 47
... sexual organs , it belongs to the Turbellaria . Mons . Blanchard calls it Temnophila Chilensis . Professor Semper saw at the Philippine Islands these Temnophila on river crabs , at five thou- sand feet above the level of the sea . The ...
... sexual organs , it belongs to the Turbellaria . Mons . Blanchard calls it Temnophila Chilensis . Professor Semper saw at the Philippine Islands these Temnophila on river crabs , at five thou- sand feet above the level of the sea . The ...
Pagina 60
... , is a messmate on these cirrhipedes . Parasites also are found in mess- mates ; the soldier - crab gives lodging to the sexual Eustoma truncata in its interior . A macrourous crus- tacean 60 ANIMAL PARASITES AND MESSMATES .
... , is a messmate on these cirrhipedes . Parasites also are found in mess- mates ; the soldier - crab gives lodging to the sexual Eustoma truncata in its interior . A macrourous crus- tacean 60 ANIMAL PARASITES AND MESSMATES .
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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