374 OLIGOCHAETA 



■papillae. First dorsal pore, F/FI. Calciferous glands in {IX) X-XIII ; intestine 



in XFI. Last pair of hearts in XII. Sperm-sacs in IX-XII. Spermatkecae in VIII; 



caecum, half as large as pouch. Hob. — Springwood ; Manly ; Randwick, N. S. Wales. 



Of this species Fletcher describes a variety, termed by him ' Murrayana.' This 

 differs from the type-form in a number of characters : (i) caeca much longer than 

 pouch, and filiform instead of club-shaped ; (2) sperm-sacs in ix, xii, instead of xi, xii : 

 (3) spermiducal glands narrower, less incised ; and the genital ducts shorter, thicker, 

 and less markedly bent in horse-shoe fashion. There seem also to be slight differences 

 in the papillae ; but, as these not only differ in individuals of the type-form, but also 

 in individuals of the variety, they are not described by Fletcher. 



(5) Megascolex australis (Fletcher). 

 Periehaeta australis, FletoheRj ibid, {a), vol. i, 1886, p. 561. 



Definition, Length, T44 mm.; breadth, 9 mm.; number of segments, 140. Clitellum, 

 XIV— XVI, with setae. Setae, 20-36. No genital papillae. First dorsal pore, V/VI. 

 Gizzard in VI ; calciferous glands in X-XII ; intestine begins in XVI. Last hearts in 

 XII. Sperm-sacs on IX, XII. Spermathecae in VIII, IX, with caecum as long as pouch. 

 Spermiducal glands with XJ -shaped duct. Hab. — Burrawang, Sydney, N. S. Wates. 



A supposed variety of this species from Mt. Wilson proves to be a new species (see 

 below, M. monticola). 



(6) Megascolex monticola (Fletcher). 

 Perichaeta monticola, Fletcher, ibid. (2), vol. ii, 1887, p. 390. 



Definition. Length, 155 wm. ; breadth, 7 mm.; number of segments, 151. Clitellum, 

 XIII- XVII , with setae. Setae, 16 on segments II-XIII ; 28-36, or even 50, 

 posteriorly. Genital papillae : ' a pair of slit-like depressions on a swollen area in 

 the line of setae, but in the interval devoid of them on the ventral surface of IX; 

 a pair of H-like swollen masses on ventral surface of X, with four depressions, perhaps 

 pores ; on the flattened ventral surface of XVII, a pair of pores ventral of the innermost 

 setae ; a second pair on small papillae, just ventral of the papillae carrying the male pores ; 

 a third pair on minute papillae on XIX, in front of the line of setae, and corresponding 

 with the interval between the first and second setae, first dorsal pore, V/VI. Gizzard in 

 VI; calciferous gland in X/XIII ; intestine begins in XVI. Last heart in XII. Sperm- 

 sacs in IX, XII. Spermathecae in VIII, IX, opening ventral of first row of setae. 

 Hab.—Mt. Wilson, N. S. Wales. 



