THE WHEEL ANIMALCULES (ROTATORIA) 605 



85 (82) Foot projects from posterior end. . Family Brachiontoae . . 86 



Lorica consisting of a convex dorsal plate and a flat ventral one; usually stout and armed 

 with spines, though not always. Lorica opened behind for the long, strong f(X)t which is often 

 covered with close rings. Foot either ending in two toes or forked at its free end 



86 (89) Foot not forked 87 



87 (88) Lorica very convex dorsally Brachionus Ehrenberg. 



Many species. 



Representative species (Fig. 922). . . Brachionus pala EhrcnlKTR. 



(Fig. 921,. 4) B. piimtatiis WiimpuX. 



(Fig. 921, -B). . . . B. qiuuiratus KousscXtii. 



(Fig. 923) B. annularis iiossQ. 



(Fig. 925) B. mollis Hempcl. 



88 (87) Lorica flat ^otciis Ehrenberg. 



Foot not ringed. 



Representative species (Fig. 926). . Noteus quadricornis Ehrenberg. 



89 (86) Foot forked at its end Schizoccrca Dadny. 



Only one species (Fig. 924). . . . Schizoccrca diver sicornis Daday. 



