rnoTozoA (ti: simi'i.ksi' animals. 



l.'j 



ri..\(;i;iJ,ATA. 



I'lii' Fi-.\(;i;j.LATA are CorLiciitii in which Uit- (.vll-lju,ly is j-rovick-a High Wall 

 with one or a few Hagelhi. 'I'he cell may Ijc solitary (Viir. II a), ..r ^y*^' 

 may lie joined with others to form colonies (Fij^s. 111!, rj^ ' Oaiu'rv*'' 



Fig. II. 



Flagelliita. a. Cerconionus crdssicuudd, a oue-cfllctl Fliijjfllalo ( x -Idd). 

 li. Govium 2)ector(ile (X 825). c. Volvox glohator witii daiiglitcr and irraml- 

 ilaiij^hter culoiiics ( X 55). (Alter Carter.) D. Surfaci' view of Volroj' 

 showing cells in hexagonal Hjiaees in commoii jelly; n, iiuclens ; cr, con- 

 tractile vacuole. Very higlily niagnilied. (After Biitsclili.) e. Virtii-al 

 section of wall of Volvox ( x SUO). o, pair.-i of flagella. (After Colm.) 



I 'olvoxglohator (Fi<!;s. 1 1 c, D, i-i), and IMate IXa. in the Case, occurs 

 at times in great almndance in ponds, even to the extent of giving a 

 green colonr to the water. The little organism, which is about 5'^ of 

 an inch in diameter, looks like a tiny green speck moving alumt in 



