Australian Rotifera. By James Murray. 171 



stands apart, and has no near relatives. The jaw, with its broad 

 border and strong teeth, suggests affinity with Mniobia, in which 

 genus M. incrassata has been placed. The shape of the head, and 

 the spiny processes on the rump, show, I believe, a true relation- 

 ship to 0. multispinosa, and for this reason the animal is placed in 

 the genus Callidina, although the toes were not seen. It may 

 eventually have to be made a distinct genus. 

 Habitat. — Katoomba, Blue Mountains. 



Callidina ? species ? plate V. figs. 9a, 9b. 



Specific Characters. — Size moderate; trunk papillose; teeth 

 2 + 1. Central trunk bearing a number of peg-like, truncate 

 processes, up to 8 or 10 fi in length. 



This undoubtedly distinct species is not named, because neither 

 head nor foot was seen, and so it cannot be placed in any genus. 

 It is probably a Callidina. 



Habitat. — Queensland. 



Mniobia scabrosa Murray. 



Eecently discovered in Africa, since found in New Zealand and 

 Australia. 



Habitat. — Queensland. 



Rotifer montanus Murray, plate V. fig. 12. 



This dusky little species, first obtained by Dr. Mackay on the 

 Nun's Veil Mountain in New Zealand, was found, also at a high 

 elevation, in the Australian Alp3. The spurs were slightly different, 

 being subacute, separated by a straight interspace, and held parallel. 



Habrotrocha angusticollis (Murray), plate IV. fig. 5. 



In Queensland the common form differed from the type in 

 having the neck of the case elongate, as in var. attenuata (India), 

 bnt strongly curved. 



Habrotrocha pusilla (Bryce). 



At Katoomba there was a form with a very pretty case, com- 

 posed entirely of hyaline pellets, regularly arranged in several 

 concentric layers. 



Habrotrocha caudata Murray. 



Recently discovered in Africa, a single example occurred at 

 Katoomba, its only known occurrence outside Africa. 



Habrotrocha longiceps (Murray). 



In Australian examples several points of structure were observed 

 which were not known when the species was described. 



