722 WORMS. INFUSORIA. 117. Volvox. 
•Rctrogra- Tranfparcnt, narrower before with a globular tip. 
Adamimicrofct p. tab. 2^. Jig. ii, 12. 
Body gelatinous, without vifible inteftines i moves fide*ways an<I 
fometimes retrograde. 
*Tr!tttCtts. 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 hird-part obtule, with fometimes 3 teeth protruded frout 
the middle on one fide, filled with globules; motion floW» 
from right to left. 
Spatulas Cylindrical, flriate, with a tranfparent fpatulate tip. 
Adams microje. p. 4JO. n, 49. 
In ftagnant waters; body cryftalline, with fine longitudinal fur' 
rows and a few globules, the top dilated ; moves in an undu' 
late manner. 
Papula. Cylindrical, with a papillary tip. 
Adams mkrofic. p. 451. «. 50. 
In dunghills: round, protuberant, opake before, furmfhe<J 
vvith a papillar finger-lhaped head, pellucid behind, both end* 
obtufe ; motion rotatory, in an oblique direftion. 
1 17. VOLVOX. Worm Invifible to the naked 
eye, timple, pellucid, fphoerical. 
Globulus. Globular, the hind-part fomewhat obfeure. 
Adams mkrofic . ^.458. n, 15. 
In vegetable infufions : body fometimes fomething qpal, with tb* 
inteibnes Juft vifible behind ' has a flow fluttering motion. 
Filula, Sphterical, with immoveable green inteftines. 
Adams micro/c. /. 438. n. lb. 
In purer waters : body apparently encompaffed by a kind of hald» 
and has a rotatory motion. 
•Sphamla. Spherical, with fimilar rounded molecules. 
Aaams mkrofe. p. 439. tab. 25, f. 6. 
Schrank Bepr.i. ^.141. tab. 2. F. 
Hermann. Naturf. 20. p, 1 44. tab. 3. fig. 33. 
In ftagnant waters: fo/jV t'”aipoied of about 60 pellucid homo?*' 
ncous tranfparent or greeniih. yellow points; moves floW'f 
about a quarter oi a circle from right to left, and then bat*^ 
again from ieu to iight, 
