WORMS. INFUSORIA. 105. Vorticella. 699 
Simple, ctip-fhaped, with a t willed ftem. 
Mull.Zool. Dan. I. 131. H. 63. tah 35./. 1. 
In fea water which has been kept f-me time; hyaline, vagi’c, 
with a thin long ftera : head fubfphaerical, ventricofe. 
^atrlda. Simple, with a r?tra£l;i!e tip and rigid ftem. 
Mull. Zool. Dan. I. />. ! 32. ». 64. tah. 3;./’. 2. 
In putrid fea water: hyaline, gelatinous, oblong, ventricofe,' the 
orifice doling into an oblong tubercle: fiem hardly twice as 
long as the head. 
^atelUna. Simple, faiicer-fliaped, with a retortile Item. 
Mull. Zool. Dan. \. p. 133. ».65, tab. H.f.J,. 
In fea water which has been kept a little while: hj aline, quick 
in motion : Jlem thin, 4 times as long as the head. 
B. Furnijhed with a tail, 
*Flo/culoja Cluftered, oblong-ovate, with a dilated pellucid dillc. 
Adams Mia-o/c. p SS 7 ‘ah. zp . f. SU ^z- , 
Inhabits fens, adhering to the Ceraiophyllum, and appears to 
the naked eye like a yellow globule : beadotwa drawn into the 
abdomen, exhibiting a broad kidney-lhaped dilk : abdomen ob- 
long-oval, pellucid, with a few black fpoti : /«;/ fnarp, twice 
as long as the abdomen, jnd rough, annulate or Iraouih. 
*^ociali‘. Chiflered, chavate, with a rough furface. 
Hydra Ihcialis. Adams Mtcr.Jc. p. 395. r. 21./. It. 
Phslof Tranj. 49. p. 249. tah. 7./. t . " 
Roe/ Inf 3. polyp tab. 94. f. 1—6. t. 95, 96. 
I..fdermulkr Micro fc. tab, f. f. g. 
Inhabits llagnant waters, growing in clullcrs on the Ceratophyl- 
lum, and united by their iiiiall thin tails to a common centre : 
/ke«i/fometiraes contr»dling into an almoft globular form. 
*Stentorea. Trumpet-lhaped, with a ciliafe margin. 
Hydra ftentorea. Adams Micr.p. 392. t. zz.f. 27, 28. 
Baken Micogr. p, 340. tab. 1%. fig l. f, g. 
Roe/ In/. 3. polyp. 594 •“>>• 94 - /• 7 . 8. 
Ledermuller Micro/c. tab. 88./" d. e. i. 
Inhabits frelh waters, adhering fingly by the fliort tail: bodt 
white, green or blue. 
'hiyacin- Simple, furnilhed with an involucre, border of the mouth 
zhtna, many-toothed. 
Baker Micogr. p. zoz. tab. iz. /. 2. 
Va.'ue, oblong, with a taper tail. 
° 4X2 
Auriculata, 
