720 WORMS. INFUSORIA. 115. Bacillaria. 116. Enchelis. 



*Hetersdi- Cylindrical, obtufe on the fore-part, the hind-part furnifh-* 

 ta. ec l with a double crefkd exfertile organ. 



Adams immfc: p. 506. tab. 25. fig. 44, 45. 

 Body to the naked eye like a white point: inteflines vifible. 



Noduhta. Ovate-oblong, depreffed, with a double row of tubercles. 

 Mull, Zoo!. Dan. 2. tab. 80. Jig. a — e. x 



Gleickcn microfc. p. 59. tab. 27. Jig. I. tab, 28. Jig. 11. 

 Found in the inteftines of the Lumbricus ierreftris and Nais litto- 

 ralis : very pellucid, mining like filver, and is propagated by 

 a tranfverfe'divifion; oval when young, and growing more 

 oblong with age, truncate at the tip. 



{15. BACILLARIA. Body confiftifcg of cy- 

 lindrical it raw-1 ike filaments, placed pal 

 rallel to each other, and frequently 

 changing their polition. 



Paradox a. JB. 



Vibrio paxilifer. Adams microfc* p. 455. tab, 25.' fg> 13 — 15. 



Shaw Xatur. Mi [cell, tab, 436, 



Mull.anim.infuf p. 54. tab, 7. Jig. 3—7* . 



Found on the Uh'a latijfma: body compofed of 5—40 lincar 

 yellowifh fliort filaments, united together, forming themfekes 

 into a fquare zigzag or extended line, but always prefer; mg 

 their paralleliim and retting in a fquare. 



110. ENCHELIS. Worm invifible to the 

 naked eye, very fimple, cylindrical. 



Viridis. Green, fubcylindrical, obliquely truncate before. 



Adams microfc. p. 443. n. 25. 1 



• In water kept feveral weeks : body opake, with an obtule tail and 

 obfeure inteflines: coaftantljr varies its motion from right tJ 



left. 



*Pm8ifera Green, fubcylindrical, obtufe before, pointed behind. 



■ Adams microj'c. p. 443. tab. 25, fig. 8. I 



In marfhes: body opake, with a pellucid fpot containing 2 blacky 

 dots in the fore-parr, and a double dark band in the middle. 



Nsbuhfa/' 



