^ ON THE ROTIFERS OR WHEEL ANIMACUL-K OF BRISBANE. 



Family 18. — Colurus amblytelus.* 

 ,, dacty lotus. 

 ,, deflexus. 

 Metopidia acuminata. 

 „ lepadella. 



,, oxysternum. 



,^ solidus. 



,, trip t era. 



Cochlearis turbo. 



Family 19. — Pterodina patina.* 



Family 20. — Brachionis angularis. 



,, bakerii.* 



„ falcatus. 



„ militaris.* 



„ palse. 



,, ,, var. amphiceros. 



„ rub ens. 



,, urceolus. 



Noteus quadricornis. 



Family 21. — Anurea aculeata.* 



,, ,, var., no ventral spines. 



,, cochlearis. 



Family 22. — Pleosoma lenticulares. 



Family 23. — Gastropus minor. 

 ,, sty lifer. 



Family 24. — Anapus ovalis. 



ORDER VI. SCIRTOPODA. — Skipping by means of 



jointed appendages. 



Family 25. — Pedalion mirum;* 



This peculiar species was found at Dunk Island 

 by Surgeon Gunson Thorpe, but I have found 

 them in the city and suburbs occasionally. 



Another species so peculiar in structure, that its position 

 in the group is uncertain, is Trochosphcera cequatorialis . 

 First found in the Philippine rice fields in 1859 by Professor 

 Semper. It was next observed in Brisbane after the lapse 



