Class VI. NAIS. 97 



GENUS XXI. NAIS. 



Body creeping, long, linear, depressed, pel- 

 lucid. 

 Bristles on each side instead of feet. 

 Tentacula, none. 

 Eyes two or more. 



Gm. Lin. 3121. Shaw's Nat. Misc. t. 270. 1. Serpen- 



Raesel. ins. iii. 567. t. 92. TINA " 



[N. with red spiral intestines and triple black 

 collar ; body slender, serpentine ; length about 

 nine lines. 



Common in stagnant waters. Ed. 



Gm. Lin. 3121. 1085. Br. Zool. iv. 46. 2. Probos- 



Nereis lacustris. Lin. Syst. Shaw's Nat, Misc. tab. 379. cidea. 



N. with a linear jointed body, with a filiform 

 foot issuing from each ; the whole animal of the 

 size of a short bristle of a hog ; an object of the 

 microscope. 



Inhabits wet places. 



VOL. IV. H 



