494 OLIGOCHAETA 



pair much further apart than ventral, irregular posteriorly. Male pores on level with 

 interval between two rows of ventral setae. Gizzard in V ; no calciferous glands ; 

 intestine begins in XVIII. Dorsal vessel double from segment V. Sperm-sacs in IX 

 (posterior wall) and XII (anterior wall). Spermathecae in VIX, each with two 

 diverticula. Hab. Mount Wills. 



This species has occasionally as many as five setae on each side of posterior 

 segments. 



(18) Megascolides smith! (FLETCHER). 



Cryptodrilus Smithi, FLETCHER, Proc. Linn. Soc., N. S. W., iv (2), 1890, p. 992. 



Definition. Length, 145 mm. ; breadth, 3 mm. ; number of segments, 170. Prostomium 

 incomplete. Clitellum, XIV XVII, complete. Setae, four couples, separated by an 

 unusually wide interval; setae of dorsal pair further away than those of ventral. 

 Oviducal pores in front and a little ventrad of first seta. Genital papillae, a pair on 

 groove between each of segments XF/XX. Dorsal pores commence IV/V. Gizzard in V 

 (or VI); no distinct calciferous glands; intestine in XVIII. Sperm-sacs in IX, XII. 

 Last pair of hearts in XII. Spermathecae in VI IX, with small diverticulum opening 

 in line with oviducal pores. Hab. Eltham, Victoria. 



(19) Megascolides tuberculatus (FLETCHER). 

 Notoscolex tuberculatus, FLETCHER, loc. cit., ii (2), 1888, p. 6n. 



Definition. Length, 350 mm. ; breadth, 7 mm. ; number of segments, 280. Proslomium 



incomplete. Clitellum, X1II-XVIII. Setae in eight rows, the outer a little further apart 



than the inner. Male pores in line with interval between ventral setae. Oviducal pores in 



front of and ventrad of first seta. Genital papillae represented by a l dumb-bell-shaped 



fossa ' on segments XVII-XXII. Dorsal pores commence XII/XIII. Gizzard in V; 



separate calciferous glands absent ; intestine begins in XVIII ; salivary glands (? nephridiat) 



in V, VI. Septa VII/XII1 thickened. Last hearts in XII. Sperm-sacs in IX, XII. 



Spermathecae in VIII, IX, each with a minute caecum. Penial setae present. Hab. 



Gippsland, Victoria. 



FLETCHER remarks of this species that it is extremely slender. 



(20) Megascolides semicinctus (FLETCHER). 

 Cryptodrilus semicinctus, FLETCHER, loc. cit., iv (2), 1890, p. 996. 



Definition. Length, 54 mm. ; breadth, 3 mm. ; number of segments, about 100. Proslomium 



