BY J. J. FLETCHER. 999 



Genitalia : two pairs of testes and of ciliated rosettes in x and 

 XI ; two pairs of racemose vesiculse seminales in xi and xii ; the 

 prostates extend through about three segments; beside each straight 

 genital duct is a pair of small sacs each containing several (3 or 4) 

 curved and gradually tapering but not spinose penial setae. Ovaries 

 and oviducts as usual; sperraathecse two pairs in viii and ix, their 

 ducts remarkably long, each with a lobate somewhat compressed 

 and rosette-like ciecum. 



Last pair of hearts in xii. Nephridial tufts numerous. 



Hab.—BMWi, lUawarra, N.S.W. (received from Rev. T. F. 

 Potts and Mr. T. G. Sloane). 



Externally and in the absence of the clitelium this distinct species 

 might pass for a species of Digaster or Megascolides ; like the pre- 

 ceding species its affinities are not very clear. 



ACANTHODRILUS MaCLEAYI, n.sp. 



About 110 small specimens, one of the largest of which is 27 

 mm. long, 2 mm. broad ; number of segment about 90. 



Colour rather light yellowish -brown. Prostomium only partially 

 divides the buccal ring (less than half). 



Setae : four pairs to a segment after the first one, the setse of 

 the outer pairs close together like those of the inner ones ; the 

 inner pairs on xvii and on xix either not visible (probably then 

 only obscured by the swellings on these segments) or situated a 

 little dorsad of the usual position. 



Clitelium present in a few specimens, comprising segments xii- 

 XVI or XVII. 



Male pores two pairs, a pair on xvii and a pair on xix, the pores 

 of each pair rather close to, and one on either side of, the median 

 line, distinctly closer to the median line than the innermost row 

 of each inner pair of setae would be if normally placed. The 

 ventral surface of xvi and xvii, and to a less degree of the next 

 two or three segments more or less modified and swollen as far 

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