1530 
NOTES ON AUSTRALIAN EARTHWORMS, 
Nephridia more numerous and minuter than in P. nemoralis ; 
in the posterior region, as in that species, the ventral row on each 
side larger. 
Hah . — Oxley near Brisbane, Queensland (collected by Mr. 
T. G. Sloane). 
The numerous and conspicuous dorsal pores, together with the 
situation of the spermathecal pores, even in the absence of 
accessory copulatory structures, suffice to distinguish this species. 
Digaster Perrieri, n.sp. 
Twenty-five (spirit) specimens from 3-5 (juv.) to 9 cm. long 
(the largest specimen in rather a soft condition), 2-5 mm. broad • 
number of segments from about 110-155. 
Prostomium divides buccal ring very slightly. 
Clitellum comprises four complete segments, xiv-xvii, complete 
all round when well develo])ed, but usually the lines of demarca- 
tion between the segments not quite effaced on the ventral surface; 
[a condition which is true also of D. armifera, the specimens which 
furnished my description of this species I now know to have been 
immature]. 
This species is allied to D. armifera., with which it agrees in its 
general characters ; characteristic points of difierence ai’e : — 
individuals are of smaller size, the body comprising fewer seg- 
ments; supposed accessory copulatory structure.s are present, 
but they are on segments x and xi, or on ix-xi, in one case a 
rudimentary fourth one on xii, and they consist of ridge-like pro- 
minences of the middle annuli extending outwards on each side to 
about the second row of setae, and frequently pi’esenting a pitted 
appearance, whereas in D. armifera they are somewhat rectangular 
areas extending antero-posteriorly right or nearly across the 
segments, and outwards as far as or a little beyond the first rows 
of setae, and they occur on segments xi and xii, in one case though 
a rudimentary additional one on x : in both species the ventral 
])ortion of segments xvii-xix is more or less altered, presenting 
