322 



AUSTRALIAN HIRUDINEA, 



fashion of Oniscus. The young are carried about attached to the 

 concave ventral surface of the adult, this surface acting as a 

 marsupium or brood pouch. The individuals occur in ponds and 

 slowly moving fresh water, under stones, beneath the bark of 

 submerged and floating timber, and parasitic on molluscs, etc. 



Glossiphonia australiensis, sp.nov. 



This species was obtained by Dr. Hill in a creek near Oberon, 

 N. S.W. The species is of much interest from a phylogenetic 

 standpoint, and well deserves a specific name indicative of its 

 locality of occurrence. 



Fig.l. — Glossiphonia australiensis, sp.n. 



Internal view showing three young ones attached to the concave ventral 

 surface. The number of annul i can be easily made out, and the anus seen 

 between the ultimate and penultimate rings. Note also the roughness of 

 the surface. (Drawn from a photograph). 



External characters. — The body resembles in its general form 

 that of most other species of the genus. It is broadest about the 



