722 WORMS. INFUSORIA. 117. Volvox. 
* Retrogra- "Vranfparent, narrower before with a globular tip. 
da. Adams microfe. p. 448. tab. 25. fig. 11, 12. 
Body gelatinous, without vifiblé inteftines ; moves fide-ways and 
fometimes retrograde. 
*Truntu. Cylindrical, with a dilated round head. 
Adams microfe. p. 450. tab. 25. fig. 10. 
Body large, mucous, grey, rather opake, the fore-part globular, | 
the hind-part obtufe, with fometimes 3 teeth protruded from 
the middle on one fide, filled with globules: mouon flow, 
from right to left. , 
Spatula, Cylindrical, ftriate, with a tranfparent fpatulate tip. 
Adams microfc. P. 450. 2. 49. ; 
In ftagnant waters: 4c4y cryftalline, with fine longitudinal fur- 
rows and a few globules, the top dilated: moves in an undu- 
Jate manner, 
Papia. Cylindrical, with a papillary tip. 
Adams microfe. p. 451. m. $0. 
In dunghills; 4sZy round, protuberant, opake before, furnifhed 
with a papillar finger-fhaped head, pellucid behind, both ends 
obtufe: motion rotatory, in an oblique direction, 
117. VOLVOX. Worm invifible to the naked 
eye, fimple, pellucid, fphserical. 
Globulus, Globular, the hind-part formewhat obfcure. 
Adams mierofc. p. 438. n. 18. 
In vegetable infufions : Jody fometimes fomething oval, with the 
inteitines jult, vifible behind: has a flow fluttering motion. | — 
Pilula, Spherical, with immovcable green inteftines. 
Ads microfe. 9. 438. n. 16. 
In purer waters: Zody apparently encompaffed by a kind of halo, 
and has a rotatory motion. ) 
*Spherula. Spherical, with fimilar rounded molecules. 
Aaams microíc. p. 439. tab. 25, f. 6. 
Schrank Beytr. 1. 0. 141. tab. 2. F. 
Hermann. Naturf 20. 5. 154. tab. 3. fig. 33. 
In ftsgnant waters: Zo4y compofed of about 60 pellucid homoge- 
neous traníparent or greenifh yellow points: moves dlowly 
about a quarter of a circle íroin right to left, and then back 
again fromm lett to right, 
Uva. 
