PLATE XXVIII. 



1. Eretmia tetrathrix 



2. Eretmia trithrix 



3. Brachionus pala 

 3d. ,, 

 36. 

 3c. 

 8d. 



4. Brachionus Dorcas 

 4a. 

 46. 



4C. ,, ,, 



4d. 



5. Noteus quadricornis 

 5ct. 



6. Notholca longispina 

 Ga. 



6(7. 



dorsal view .... 



side view .... 



variety ; dorsal view 



variety ; ventral view 



male, side view 



male, dorsal view . 



female egg .... 



dorsal view .... 



side view .... 



male, dorsal view . 



male, side view 



vibratile tag .... 



dorsal view ; to show viscera . 



lorica, dorsal view . 



lorica, obliquely dorsal view . 



lorica, side view 



trunk, dorsal view . 



trunk, ventral view 



G 

 G 

 H 

 G 

 G 

 G 

 G 

 G 

 G 

 G 

 G 

 G 

 H 

 H 

 H 

 H 

 H 

 H 



top of lorica, ventral view ; to show movable flap . H 



