EXPLANATION OP PLATE A. 



*„.* In all cases throughout the plates, both the plain and coloured, the injures tlmt have 

 the initial IF attached to them have been drawn from life by Dr. Hudson, and those with the 

 initial G, also from life, by Mr. Ciosse. 



Brachionus bubens and the details of its structure. 



1. Dorsal view .... 



2. Ventral view ; upper half . 



3. Lorica and muscles; dorsal view 



4. „ „ ventral view 



5. Side view ..... 

 G. Mastax and tropin ; dorsal view . 



7. Tropin; ventral view. 



8. Malleus expanded by pressure . 



H 

 H 

 H 

 H 

 H 

 G 

 G 

 G 



9. Malleus, as in nature 



10. Incus, side view 



11. Ganglion and eye 



12. Extremity of foot 



G 

 G 

 H 

 H 



13. Male; penis withdrawn (after Dr. Colin) 



14. Male; penis extruded (after Dr. Colin) 



15. Dorsal antenna . . . . H 



16. Ephippial egg (after Dr. Colin) 



In all the above figures the letters signify as follows : — 



