972 NOTES ON AUSTRALIAN EARTHWORMS, 



The other species is represented by two specimens of which the 

 largest is 75 mm. long and 5 mm. broad. Both specimens are 

 much shrivelled and contracted, and their characters are difficult 

 to make out. The anterior extremity is very obtuse ; the body 

 tapers from before backwards, the diameter being least in the 

 posterior part of it. The fourth segment is bi-annulate, the next 

 four or five are wider and tri-annulate. There is no trace of a 

 clitellum in either case. Setae in eight rows, forming two ventral 

 and two lateral pairs, those of each pair at equal distances apart, 

 a point in which it differs from any other Australian worm I have 

 yet seen except Lumbricus, from which its other characters at 

 once distinguish it. Two pores on papillae on xvm, presumably 

 the male pores ; these are quite distinct in the large specimen ; on 

 the segment in front of, and on the second and fourth segments 

 behind xviii, there appear to be pairs of pores, but they are so 

 indistinct that it is doubtful whether they really are so. There 

 are two pairs of spermathecal apertures, between vn and viii and 

 viii and ix. 



Among the worms sent by Mr. Eroggatt were two small and 

 immature worms about 60 mm. long and 2 mm. broad; both are 

 rather soft. The clitellum is undeveloped in both. There are 

 eight rows of setae forming four pairs, two lateral and two ventral, 

 the .setae of the four pairs at equal distances apart. Dorsal pores 

 after about x or xi. On xvm there are two conspicuous papillae 

 doubtless carrying the male pores, from which in one specimen 

 there protrude a pair ot long, curved, penial setae. This worm 

 may be the same species as the foregoing worm from Percy Island, 

 and both may be a species of Disaster, but apparently not the 

 same as D. armijera in which the setae of the lateral couples are 

 further apart than are those of the ventral ones. 



I am indebted to Dr. Ramsay for a specimen of a large and 

 very fine worm about a foot long from the Richmond, of which as 

 the single speciman is not available for dissection, and its characters 

 cannot be defined without, as well as of some others of which at 

 present my supply of material is insufficient, I hope to give 

 descriptions shortly. 



