VERMES THE WORMS 101 



with a number of short, sharp bristles. Dorsal to the last 

 pair of these is a longer pair, modified as feelers, which also 

 are bristled at the ends. Then the three (sometimes only 



Fig. 39. Amphitrite Edwardsii. Natural size 



two) next segments are helmet- shaped, or, better, sun- 

 bonnet-shaped, the flat surface placed anteriorly, the 

 rounded portion posteriorly. These are followed by a 

 number, varying from twenty to forty pairs, of conical feet, 



