1556 NOTES ON AUSTRALIAN EARTHWORMS, 
for some distance, while the dorsal interval devoid of setae 
becomes correspondingly obliterated, many of the setae being 
almost in the median line ; in about the posterior fourth of the 
body this state of things becomes still more marked, the setae — of 
which on some segments as many as 16 may be counted, a few 
additional ones having appeared — being now situated on con- 
spicuous ridges, giving the body a more yerichaete appearance, the 
setae of the half circles at noticeably irregular distances apart. 
Genital papillae : between each two segments from xv-xxi is a 
pair of flat-topped genital papillae with indistinct pores — six pairs 
when all are developed, but some of them especially the first or the 
one between xviii and xix, or the hindermost may be wanting alto- 
gether, or only slightly developed, or only on one side of the body, 
or the last pair may be between xxi and xxii — opposite and 
extending outwards a little dorsad of the interval between the 
first and second setae on each side, the corresponding papillae of 
opposite sides more or less completely connected across the median 
line, giving rise to what, for want of a Vjetter appellation, in my 
descriptions of other worms I have called ‘dumb-bell-shaped.’ 
The male pores are not very conspicuous, on two little papillae 
on the pair of genital papillae between xvii and xviii, and | of 
which are on the latter segment, corresponding with the interval 
between the first and second setae (not visible on xviii) on each 
side but just ventrad of the latter. 
The spermathecae are pouches with rather long ducts, each with 
two short but distinct club-shaped caeca, one on either side of the 
duct near its exit, just as in Cryptodrilus Illav^arrcu. 
Hah . — Near Gosford, N.S.W. (in brush land). 
Perich^ta Macleayi, n.sp. 
Twelve (spirit) specimens from 55-90 mm. long, 3-5-4 5 mm. 
broad ; number of segments from about 80-90. 
