j1o 
* Mytilus. 
Lepus. 
Siluruse 
Calvitium. 
9 Gyrinus, 
»Inguieta. 
* Lemna, 
WORMS. INFUSORIA. 107. Cercaria. 
Oblong, broader at each extremity, tranfparent, ciliate 
and horned. 
Adams Macrofc. p. §32. tab. 27. fig. 29. 
In marth water: pellucid, white and rounded at both ends, dark 
in the middle with black inteftines mixed with a few white 
molecules, the fore-part ciliate and armed with z horns, the 
hind- part ciliate and furnifhed with z briftles reaching beyond 
the margin. 
Ovate, hairy on the fore-part and briftly behind, 
Adams Microfe- p. $32. n. 270. 
In vegetable and animal infufions: comprefied, with 2 or 3 
moveable lucid dots on the fore-par:, 
Oblong, hairy at both ends and ciljate on the back. 
Adams Microfe. b. 833. n. 271. 
In ftagnant water: {mooth, opake, crooked, with a very fharp tail 
furnifhed with unequal rows of moveable hairs. 
Broadifh, oblong, with glittering horns on the fore-part, 
Adams Microfc. p. $33. n. 272. 
In vegetable infufions: broad, flat, obtufe at both ends, with a 
black fpot and a few briftles near the hinder extremity ; on the 
fore-part 2 moveable horns and 3-5 black moveable points. 
107. CERCARIA. Worm invifible to. the 
naked eye, pellucid and furnifhed with 
a tail. : 
Round, with a fharp-pointed tail. 
Baker Microfe. expl. tab. Yo. fig. 1? 
Hill an. tab. 1. 3, Leswenb. ep. 41. f. S. 
Frank. Samml. 4. p. 227. n. V. f. a. p. 3720 te 3. fy ay b. 
Ledermuller an. /perm. fig. 1, 2? 
In animal infufjons: white, gelatinous, fore-part nearly globular, 
Changeable, convex, with a fmooth tail. 
Adams Microfc. p. 493. tab. 25. f. 305 31. 
In falt water: white, gelatinous, changing its fhape inte a fphee~ 
rical long or oval figure, but always preferving its tai]. 
‘Changeable, fomewhat flattened, with an annulate tail. 
Adams Microfc. p. 494. tab. 25. f 33—235- 
In ditch water: body changing to oblong, triangular or kidney- 
dhaped: tai/ fhort, thick, annulate, or long, flexile without rings. 
* Turba, 
