Abstract
Summary
Amblystoma larvae, deprived of the cerebral hemispheres, eyes, and nasal organs react by snapping at inanimate objects in motion. They are capable of feeding upon daphnia and small enchytraeid worms. Their food intake and growth is greatly reduced as compared with these functions in larvae lacking eyes and nasal organs, but with the hemispheres intact.
The lateral-line sense organs alone constitute an adequate receptor apparatus for the detection of food in motion. The motor activities concerned with lurching, engulfing food, chewing and swallowing are carried out in a normal integrated manner, although they are less vigorous than in larvae with intact hemispheres.
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