172 Transactions of the Society. 



Foot very short, 3-jointed ; spurs small, conical or ovate acumi- 

 nate, sometimes without interspace, sometimes with wide convex 

 interspace. .Relatively large lamella} were seen in examples from 

 Katoomba. The original Scottish examples showed no trace of 

 lamella}. It may be that there are distinct species having similar 

 cases. 



Habrotrocha strangulata sp. n.. pi. IV. figs. 6a-6e. 



Specific Characters. — Small, narrow ; antenna very short, neck 

 constricted in third segment ; gullet very long ; jaw long, with very 

 numerous teeth ; foot short, 3-jointed ; spurs very broad, acuminate, 

 no interspace ; rostrum constricted below. 



Length 300 p,, width of trunk 50 p,, across spurs 15 /z. Second 

 neck segment very long, bulging. The permanent constriction of 

 the third neck segment recalls H. acornis, and is probably due to 

 its dwelling in a narrow-necked case, but in neither species has a 

 case ever been seen. 



The antenna is less than half the neck-width. The corona has 

 not been seen unfolded, but in contraction it is small. Though 

 incompletely studied, the constricted neck, numerous teeth, and 

 broad acuminate spurs, distinguish this from all other species. 



Habitat. — Katoomba, numerous 



Habrotrocha auriculata Murray. 



Eecently discovered in tropical Africa, and afterwards in 

 Australia. 



Scephanotrocha rubra Bryce. 



Though described only a few months ago, the animal has long 

 been known. The generic characters can only be seen when the 

 animal is feeding, but it can be distinguished by the specific 

 characters even when creeping. 



Found in Britain, North America, New Zealand, and Australia. 



Ccratotrocha cornigera (Bryce). 



This remakable Bdelloid appears to be rare or local. It is 

 usually found among moist mosses {Sphagnum, etc.) or on mountain 

 tops. It appeared in dry moss from the Australian Alps, the first 

 time I have found it in dry moss. 



It is recorded for Spitsbergen, Britain, Switzerland, and Aus- 

 tralia. 



Adineta longicomis Murray. 



Supposed to be limited to tropical and sub-tropical countries, 

 till its recent discovery in the coldest region where any Butifera 



