620 NOTES ON AUSTRALIAN EARTHWORMS. 



Six mesenteries commencing with the one between viii and ix 

 are noticeably thicker than the others. 



The last pair of hearts in xiii. 



Minute inconspicuous tufts of tubules distributed over the walls 

 of the body cavity seem to be segmental organs. 



Eah. — Warragul, Gippsland, Victoria. 



This species is readily distinguishable from P. fecunda, the only 

 other Australian species having four pairs of spermathecse and 

 interrupted circles of setaa yet described, by the dorsal position of 

 the spermathecal pores. 



