De.scyipfloii of Victorian Eartlivjorms. 155 



(10) M. aftemuifus, sp. ii. (Figs. Gl, 62, 82). Length of 

 spirit sj)ccimen 0-8 inches. Only one-eighth inch 

 liroad at most, and often im\y half of this. Veiy 

 thin and attenuate ; moie than one foot long when 

 alive. Dull greyish colour when alive. 



Pro.storaiuin not at all dovetailed into the peristomium. 



Clitellum purple in spirit specimens, and well marked, 

 occupying segments 13-18, but not complete on the ventral 

 surface of the latter. 



Setiv in foui- couples, the interval between the rows of the 

 outer couple, which are lateral in position, being sliglitlv 

 g-reater than that between the rows of the inner couph;. 

 The fourth row slightly irregular in the last ten segments, 

 and coming to lie dorsal ly. 



Male ])()res, inconspicuous, on segment 18. 



Oviduct pores on segment 14, ventral of, and anterior to, 

 the level of the innermost seta3. 



Spermathecal pores, two pairs, between segments 7 and 8, 

 8 and 9. 



Dorsal pores present, the first between segments 5 and ; 

 obliterated in the clitellar region. 



Alimentary canal. Gizzard in segment 5. No true cal- 

 ciferous glands. 



Circulatory system. Dorsal vessel single, the last heart in 

 segment 12. 



Excretory system. Megan ephric. 



Testes difficult to determine exactly, but ^dmost certainly 

 two pains in segments 10 and 11, into whicli open two di:,- 

 tinct pairs of rosettes. 



Prostates, coiled, tubular, in segment 18. Aiound each 

 prostatic duct lies a curious structure, consisting of minute 

 gra| le-like piocesses. 



Si)erm sacs, grape-like, attached to the anterior wall or 

 segment 12, and the posterioi- of segment 9. 



Ovaiies in segment 13, with oviducts o[)ening into the 

 same segment. 



Spermathecfie, two pairs, in segments 8 and 9, each with a 

 long sac and small divei-ticulnm. 



Habitat. Warragul, Oippsland. Obtained by digging in 

 gullies, and found along with Mer/d-scolides au.sfrali.s, 

 tuherciiiatiis, rtianni, roseus, cC'c. Always some distance 

 under mound. 



