1886.] DR. A. G. BOURNE ON INDIAN EARTHWORMS. 669 
setee point forwards and away from the middle line, while the lateral 
setee point straight forwards. I lay no stress on this arrangement 
at present ; it may be caused by my method of flattening out the 
body-wall after a median dorsal incision. I have no observations 
with regard to penial sete. 
Length 130 millim., circumference 8 mm.; number of somites 
about 114. 
Hab. Naduvatam, Nilgiris. Found along with P. gracilis. 
I hope to make some special observations at a later period with 
regard to the distribution of these worms, but I may point out now 
that the only two species presenting this remarkable arrangement of 
nephridia, while differing in almost all other essentials, were found 
together. 
PERICHETA SALETTENSIS, Sp. Nl. 
The clitellum extends over somites xiv., xv., xvi., and xvii., and 
is well marked. 
The male pores are situated on somite xvili., without much ridge 
around them. 
The oviducts open by a median pore in somite xiv. 
The spermathecee lie in somites vii., vili., and ix.; they present a 
pair of small appendages. 
The gizzard is situated in somite vi. 
I have no observation regarding intestinal czeca. 
The nephridia occur in, at any rate, most of the somites ; they are 
very large and present rosettes of tubules in certain anterior somites. 
The setee present a dorsal gap equal to about three ordinary gaps, 
and a ventral gap equal to about five ordinary gaps. There seem 
to be no modified penial setz. 
Length 70 millim., circumference 9 mm. ; number of somites 112. 
Hab. Salem, elevation about 1000 feet, in wet ground together 
with P. bivaginata ; I only found two specimens. 
PERIONYX SALTANS, Sp. n. 
The clitellum extends over somites xiv., xv., and xvi. In the 
hitherto known species of Perionyx, P. excavatus, E. P.', and P. 
macintoshii, Bedd.’, the clitellum extends over somites Xiii., Xiv., xv., 
xvi., and xvii. 
The male pores are situated on papille in a median pit in somite 
xviii. 
The oviducts open by a single median pore in somite xiv. 
There are three pairs of spermathecze ; these are placed in somites 
vi., vii., and viii. The spermathecal pores are placed between somites 
vi., and vii., vii. and viii., vill. and ix. This is an unusual arrange- 
ment, the spermatheca generally opens between the somite in which 
it lies and the somite in front, Each spermatheca presents two 
minute appendices. The spermathecal pores are placed very near 
the median line; in all the Pericheta species they are very lateral 
in position. 
1 Nouv. Arch. d. Muséum, t. viii. 1872, p. 126. 
2 Ann, & Mag. Nat. Hist., Oct. 1883, p. 217. 
