7 o6 WORMS. INFUSORIA. 106. Trichoda. 



*Rattus. Oblong, carinate, the fore-part hairy, the hind-part with 

 a very long brittle. 

 Adams Microfc. p. 52 1, tab. 27. fig. 4. 

 Hermann. Naturf. 20. tab. $.f. 47. 

 In ilagnant water : the interlines vifible in a gibbofity on the back. 



Inqiulinus « Sheathed in a cylindrical bag, with a fmall pedicle retortile 

 within the bag. % 



Mull. ZooU Dan. 1. p. 31, n. 8. tab.g, ». 2. 

 In fea water : faeath 3 or 4 times as long as the body, rarely pe- 

 dui eulate: body covered with molecules. 



*hnata. Sheathed in a cylindrical bag, with a pedicle projectile be- 

 yond it. 

 Adams Microfc. p t 526* tab, 2"/. fig. 1 1 • 

 In fait water: funnel-form, contractile. 



Transfuga. Broad, the fore-part hairy, the hind-part briftly; one fide 



finuate, the other pointed. 

 Mull.Zool. Dan, l. p. 29. tab. 9. ». I, 

 In marine water kept a little while : twice as long as it is broad, 



the fore part rounded, the back convex beyond the middle and 



ending in a fquare tail obliquely truncate. 



Ciliata* Ventricofe, the hind-part covered with hair. 

 MulL Z00L Dan. 2. tab. 73. fig. 13 — 1 5. 



In frefh water: ycllowifh, thick, kidney-fhaped or triangular, 

 every where covered with hairs. 



*Cydidhim. Ovate, gaping at the tip and and hairy at the bafe. 

 Jdams Microfc. p. 527. tab. 2J.fig. 15. 

 Joblot Microfc. I. tab. Z y f. 3. tab. S.f. 9. tab. lO.f. 1 9. 

 In vegetable infufions : pellucid, the hind-part filled with globules, 



* Pu/ex. Ovate, with an inciiion on the fore-part, the front and bafe 

 hairy. 

 Adams Microfc. p. 507. tab. 27. fig. 12. 



In frefh water: erecl, a little convex, pellucid, filled with dark 

 molecules : front obtufc with a few fcattered hairs. 



*Lynceus. Nearly fquare, with a hooked beak and hairy mouth. 

 Adams Microfc. p. 528. tab. zj.fig. 16. 



In water kept iome time : membranaceous, comprelTed, with the 

 uue&mes eminently vifible. 



* Charon.- 



