DESCRIPTIONS OF GENERA AND SPECIES 377 



this species Fletchee has given a short description of the cocoon (see p. 6). The 

 largest specimens came from Eltham, and in these there were no copulatory struc- 

 tures on segments x, xi (i)^. 



(13) Megascolex tenax (Fletcheb). 



Periehaeta tenax, Fletchee, ibid, (a), vol. i, 1886, p. 953. 



Definition. Length, 157 mm.; breadth, 6 mm.; numher of segments, 150. CliteUum, 

 XIII- XVII , with setae. Setae, 36-60. Male pores in line with seta 2. Genital 

 papillae four on each of segments IX, X, a pair sometimes also on XI, on XVII, XIX a pair 

 of circular depressions, a single one on XVIII. Dorsal pores begin IV, V. Calciferous 

 glands in XI-XIII ; intestine begins in XVI. Septa VII/XIV thickened. Dorsal vessel 

 shows indications of being double in parts ; hearts in X—XII. Sperm-sacs in IX, XII. 

 Spermathecae in VIII, IX, opening in line with seta a or 3, caecum short. Ilab. — Auburn, 

 near Paramatta, Cumberland County, Springwood Blue Mts., N. S. Wales. 



See also Fletchee (6). 



(14) Megascolex austrinus (Fletchee). 



Periehaeta austrina, Fletchee, ibid., p. 956. 



Definition. Length, 90 mm.; breadth, 5 mm.; number of segments, ia8. Clitellimi, 

 XIV— XVII. Setae, 16 in front of clitellum, ao-40 behind. Genital papillae on IX, 

 XXVII, XIX. Spermathecae «'« VII— IX, opening in line with seta a, caecum long. 

 Other characters as in M. australis. Hub. — Burrawang, N. S. Wales. 



(15) Megascolex gracilis (Fletchee). 

 Periehaeta gracilis, Fletchee, ibid , p. 958. 



Definition. Length, 110 mm.; breadth, 4-6 mm.; number of segments, 155. Clitellum, 

 XIII-XVI. Setae, ao-a4. Genital papillae single in XVI/XVII-XVIII/XIX, and 

 a pore in middle of XVIII. First dorsal pore, V/VI. Gizzard in VI ; globular glands 

 in XII-XV ; intestine begins in XVII. Sperm-sacs in XI, XII. Last heart in XII. 

 Spermathecae in VII-IX, opening in line with seta 4 or 5, with long caecum.. Spermi- 

 ducal glands long, reaching from XVIII-XXIV, dnct JJ-shaped. Hab. — Auburn, near 

 Paramatta, 

 Fletcher states that the oviducal pores are paired at the end of his description, 



but that there is a single pore at the beginning (p. 959). 



' Nothing is said about segment xi in the original description. 



3c 



