128 ANIMALS OF THE SEASHOEE 



Spiosetosa Verrill 



An elongate worm up to three inches long; seg- 

 ments all alike. Inhabits small round holes or tubes 

 in the mud near low water mark. Massachusetts to 

 New Jersey. 



Polydora ligni Webster 



Somewhat similar to the above except that the 

 fifth segment is much longer than the others. 



Lives in fragile tubes which it constructs with 

 great rapidity out of dirt. When disturbed, the 

 worm retracts within the tube. Lives in shallow 

 water along the New Jersey coast. Numerous other 

 species of Polydora are found among tunicates and 

 mussels on piles and in similar habitats elsewhere 

 along the East Coast. 



Amphitrite ornata Leidy 



PLATE XIII. Fig. 1 



One of the most beautiful worms on our coast. 

 It constructs rather firm tubes out of the mud and 

 sand in which it lives. The worm is flesh-colored 

 and has three pairs of large red plume-like gills and 

 flesh-colored tentacles at the head end. Mud flats at 

 low water, North Carolina to Cape Cod; fairly com- 

 mon in New Jersey. 



