374 OLIGOCHAETA 



papillae. First dorsal pore, TJVI. Calciferous glands in (IX) XXIII; intestine begins 

 in XVI. Last pair of hearts in XII. Sperm-sacs in IX-XII. Spermathecae in VIII ; 

 caecum half as large as pouch. Hab. 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). 

 Perichaeta australis, FLETCHER, ibid. (2), vol. i, 1886, p. 561. 



Definition, Length, 144 mm. ; breadth, 9 mm. ; number of segments, 140. Clilellum, 

 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 \l-shaped duct. Hab. Burrawang, Sydney, N. S. Wales. 



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 mm. ; 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 8-li&e 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 Jirst row of setae. 

 Hab.Mt. Wilson, N. S. Wales. 



