DESCRIPTIONS OF GENERA AND SPECIES 379 



(ao) Megascolex hoggii (SPENCER). 

 Perichaeta hoggii, SPENCER, ibid., p. 6. 



Definition. Length, 120 mm.; number of segments, 125. Clitellum, XIII-XVII. Setae, 

 24-32. Genital papillae, three pairs on IX-XI, on IX/X an additional pair. Calciferous 

 glands in X-XII; intestine begins in XVII. Last heart in XII. Sperm-sacs in IX, XII. 

 Spermalhecae in V-IX. Hal. Castlemain, Victoria. 



(21) Megascolex rubra (SPENCER). 

 Perichaeta rubra, SPENCER, ibid., p. 8. 



Definition. Length, 55 mm. ; number of segments, 90. Clitellum, XIV-XVI. Setae, 2024. 

 Genital papillae on V-IX, gradually becoming paired from in front backward*, median 

 longer papillae on XVII, XIX-XXIII. Calciferows glands in X-XII ; intestine begins in 

 XV. Last heart in XII. Sperm-sacs in IX, XII. Spermathecae in V-IX. Hob. 

 Tallarook, Victoria. 



(22) Megascolex frenchii (SPENCER). 

 Perichaeta frenchii, SPENCER, ibid., p. 9. 



Definition. Length, loomm.; number of segments, no. Clitellum, XIII XVII. Setae, 

 2024. Genital papillae median on IX, X, XIX-XXII. Calciferous glands in X-XII ; 

 intestine begins in XV. Last heart in XII. Sperm-sacs in IX-XII. Spermathecae in 

 V-IX. Hab. Loch, S. Gippsland, and Waratah Bay. 



(23) Megascolex steelii (SPENCER). 

 Perichaeta steelii, SPENCER, ibid., p. 10. 



Definition. Length, 60 mm.; number of segments, 120. Clitellum, XIV XVI. Setae, 20-24. 

 Genital papillae median on XVII. Calciferous glands in X-XII ; intestine begins in XV. 

 Last heart in XII. Sperm-sacs in IX, XII. Spermathecae in V-IX. Hab. Woodend, 

 Victoria. 



(24) Megascolex fielder! (SPENCER). 

 Perichaeta fielderi, SPENCER, ibid., p. 19. 



Definition. Length, 150 mm.; number of segments? Clitellum, XIII-XVIII. Setae, 12 on 

 all segments. Genital papillae median XIX/XX, XX/XXI. Vascular swellings in XI, 



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