« 



7 io WORMS. INFUSORIA. 107. Cercaria. 



* Mytilus. Oblong, broader at each extremity, tranfparent, ciliate 

 and horned. 



Adams Microjc. p. 532. tab. 27. jig. 29. 



In marfti water: pellucid, white and rounded at both ends, dark 

 in the middle with black intcftines mixed with a few white 

 molecules, the fore -part ciliate and armed with 2 horns, the 

 hind-part ciliate and furnifhed with 2 briftles reaching beyond 

 the margin. 



Ictus. Ovate, hairy on the fore-part and briftly behind. 



Adams Microjc p. 532. 0. 270. 



In vegetable and animal infufions : comprefTed, with 2 or 3 

 moveable lucid dots on the fore-part. 



Silurus. Oblong, hairy at both ends and ciliate on the back. 



Adams Microjc. p. 533. //. 27 1 . 



In ibgnant water : imooth, opake, crooked, with a very (harp tail 

 furnifhed with unequal rows of moveable hairs. 



pafoitium. Broadifh, oblong, with glittering horns on the fore-part. 

 Adams Microfi. /. 533. ». 272. 



Jn vegetable infufions: broad, flat, obtufe at both ends, with a 

 black fpot and a few bridles near the hinder extremity ; on the 

 fore-part 2 moveable horns and 3-5 black moveable points. 



107. CERCAUIA. Worm invifible to the 

 naked eye, pellucid and furniilied with 

 a tail, 



*Gjrbms. Round, with a fharp-pointed tail. 

 Baker Microjc expl. tab. 10. Jig. I ? 

 Bill an. tab. 1.3. Le<w?nb. ep. 4 1./. 5. 

 Frank. Samml. 4./. 227. n. I./, a. p. 372. /, 3./. a, b. 

 Ledcmuller an.Jperm.fg. 1, 2? 

 In animal infufions : white, gelatinous, fore-part nearly globular, 



*Inquieta. Changeable, convex, with a fmooth tail. 

 Adams Microjc. p. 493. tab. 25./. 3P, 31. 



In fait water: white, gelatinous changing its fhape intc a fpha?- 

 rical long or oval figure, but always preferving its tail. 



tUtifnq, Changeable, fomewhat flattened, with an annulate tail. 

 Adams Microjc. p. 494. tab. 25. /. 33 — 35. 



In ditch water : body changing to oblong, triangular or kidney- , 

 ihaped: tail fhort, thick, annulate, or long, flexile without rings. 



* Turbo. 



