Class VI. NEREIS. m 



GENUS XX. NEREIS. 



Body long, slender. 



Feet formed like a pencil of rays, and nume- 

 rous on each side. i 

 Mouth at the extremity, unguiculated. - 

 Feelers above the mouth, simple. 



N. segmentis xxiii. corpore Noctiluca marina. Amcen. A- 1. Nocxr- 

 vix conspicuo. Lin. Syst. cad. ^^. ^^^^.^'^' 



MjOCtiluC6Tlt 



1085. Gm. Lin. 3115. Easier, i. (ah. iv. Jig. 3. 



These are the animals that illuminate the sea, 

 like glow-worms, but with brighter splendor. 

 I have at night, in rowing, seen the whole 

 element as if on fire round me ; every oar 

 spangled with them ; and the water burnt with 

 more than ordinary brightness. I have taken 

 up some of the water in a bucket, seen them 

 for a short space illuminate it; but when I 

 came to search for them, their extreme smail- 

 ness eluded my examination. 



Nereis. Lin. Sysf. 1086. Faun. Suec. No. 20g5. /> C^RULEA. 



Gm. Lin. 3117. Blue. 



N. smooth ; depressed ; with 1 84 segments of 

 a bluish-green color, semi-pellucid ; a longitu- 



