1000 NOTES ON AUSTRALIAN EARTHWORMS, 



dorsad as the second pair of setse, the modified surfaces more or 

 less confluent, but in tersegmen tally for a short distance on either 

 side of the median line less modified ; hence the three or four 

 intersegmental depressions (the first one between xvi and xvii) so 

 commonly present in spirit specimens are probably 2^ost-mortem and 

 due to shrinkage. 



Oviduct pores, spermathecal pores, nephridiopores, and dorsal 

 pores not determinable. 



Alimentary canal : a single large gizzard present. 



Genitalia : a large pair of vesiculae seminales (probably in xii), 

 a doubtful smaller pair situated two segments in front, with two 

 pairs of ciliated rosettes (and probably testes) in the two interven- 

 ing segments; prostates two pairs, with two pairs of straight fairly 

 long genital ducts ; four pairs of delicate sacs, a pair to each genital 

 duct, containing penial setae, long, curved, and tapering, and minutely 

 notched distally, the free extremity not a sharp point, but flattened. 



Nephridia : a pair of tubules to a segment. 



Hah. — Napier Eange, 100 miles S. of King's Sound, N.W. 

 Australia (Macleay Museum, collected by ]Mr. W. Froggatt). 



These were the only specimens of earthworms obtained by Mr. 

 Froggatt during nearly a year's residence in the Kimberley 

 District. Owing to their small size — the largest of them just 

 exceeding an inch — it is difficult to make out the details or to 

 localise the various organs. There is no doubt however about the 

 presence of two pairs of prostates and two pairs of genital ducts. 

 This species is distinct from A. australis from Cape York recently 

 described by Dr. Michaelsen [I.e., p. 9). 



Perich.eta macquariensis, n.sp. 



Five well preserved somewhat contracted spirit specimens 130- 

 180mm. long, 5-7 mm. broad; number of segments about 150-200. 



Colour purplish or reddish-brown, paler beneath. Prostomium 

 partially divides the buccal ring (about half) ; sometimes from its 

 posterior margin a median longitudinal groove extends backw^ards 

 as far as the third segment. 



