THE WHEEL ANIMALCULES (ROTATORIA) 6oi 



72 (71) One eye Notops Hudson. 



Slight indication of lorica sometimes. Several species. 



Representative species (Fig. 909). . . Notops brackionus Ehrenberg. 

 (Fig. 912). . . . .». N. davulatus Ehrenberg. 

 (Fig. 910) N. pelagicus Jennings. 



73 (65) Lorica present 74 



74 (81) No foot 7 



75 (76) Lorica of two convex plates, placed together at their edges. 



Family ANAPODroAE. 

 Lorica ovoid or oval. 



Only one genus Anapus Bergendal. 



One or two species. 



Representative species (Fig. 911) Anapus ovalis Btrgendal. 



76 (75) Lorica of a convex dorsal and a flat ventral plate, or sometimes 

 irregular Family Anuraeidae . . 77 



Open in front for head and behind for cloaca; usually armed with spines or teeth. 



77 (80) Spines or teeth at the anterior or posterior edges of the lorica, or 

 none 78 



78 (79) Lorica not longitudinally striated Anuraea Ehrenberg. 



Representative species (Fig. 913, A and B). Anuraea cochlearis Gosse. 

 Many species. Lorica of convex dorsal and flat ventral plate. 



(Fig. 913, C). ..... A. brensi>ina Gosse-_ 



