380 OLIGOCHAETA 



XII ; calciferous glands in XIII; intestine begins in XVII. Last heart in XIII. 



Sperm-sacs in XII. Spermathecae in VIII, IX. Hob. Narre Warren, Fern-tree Gully, 



and Sassafras Gully. 



This species is remarkable for its colour, which is described by SPENCER as being 

 ' cream-coloured, with a thick, bright pink-coloured clitellum.' Its general appearance 

 is said to be that of a Megascolides. There appears to be only a single pair of testes 

 and funnels. The existence of peptonephridia is stated ; one of the interesting points 

 in its structure seems to be the presence of vascular swellings as well as true calciferous 

 glands. It has also penial setae. 



(25) Megascolex frosti (SPENCER). 

 Perichaeta frosti, SPENCER, ibid., p. 20. 



Definition. Length,, 120 mm.; number of segments, 220. Clitellum, XIV-XVII. Calciferous 

 glands in VIII-X ; vascular swellings in XI-XIII ; intestine begins in XV. Dorsal vessel 

 partly double. Last heart in XIII. Sperm-sacs in XII (and XIII 7). Spermathecae in 

 VIX. Hab. Croajingalo. 



This species is much like the last in general appearance ; it has also single testes. 

 The spermiducal glands are bilobed as in certain Cryptodrilids. The setae were 

 invisible. 



(26) Megascolex lateralis (SPENCER). 

 Perichaeta lateralis, SPENCER, ibid., p. n. 



Definition. Length, 90 mm.; number of segments, 126. Clitellum, XIV XVI. Setae, 20-24. 

 Genital papillae, a pair close to male pores and, a pair on XVIII/XIX, XIX/XX, IX/X. 

 Vascular swellings in IX/XII ; intestine begins in XVII. Last heart in XII. Sperm-sacs 

 in IX, XI, XII. Spermathecae in VII IX. Hab. Castlemain, Tallarook, Victoria. 



(27) Megascolex dendyi (SPENCER). 

 Perichaeta dendyi, SPENCER, ibid., p. 12. 



Definition. Length, 60 mm.; number of segments, 160. Prostomium complete. Clitellum, 

 XIV XVI. Setae, 12 vp to segment XIX, thence increasing to 20. Genital papillae paired 

 on VIIT/IX, IX/X (surrounding apertures of Spermathecae), XVII/XVIII, XIX/XX, 

 XX/XXI, median on XVIII/XIX. Oesophageal swellings in IX- XII ; intestine begins in 

 XVIII. Last heart in XII. Sperm-sacs in IX, XII. Spermathecae iu VI-IX. Hab. 

 Healcsville, Victoria. 



