SEA- WOUMS. 



53 



The body consists of from one linndred to two hundred 

 segments. The head consists of two segments, the first 



Fig. 57. — Euchone elegans, 

 enlarged. 



Fig. 58. — Ainphitrite ornata, natural size. 



witli four eyes and two pairs of tentacles. Tlie second seg- 

 ment bears four tentacles. Each of the other 

 segments bears a joair of paddle-like apj^end- 

 ages, which may be best studied by examining 

 one of the middle segments (Fig. 5G). 



In certain kinds, as Etidione (Fig. 57), the 

 gills form a beautiful feathery crown on the fig. .59.— ciliated 

 head; while in Awphitrite (Fig. 58) the ten- '^^"fAX 

 tacles are very numerous, and the bushy red doce). 

 gills grow out by tlieir side. Some sea-wonns are beauti- 

 fully phosphorescent. The J'oung of all sea-worms (Fig. 

 59) are ciliated, and swim on the surface of the sea.* 

 * See VerriU's works in U. S. Fish Commissiou Reports, etc. 



