1886.] DR. A. G. BOURNE ON INDIAN EARTHWORMS. 669 



setse point forwards and away from the middle line, while the lateral 

 setae 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 setse. 



Length 130 millim., circumference 8 mm. ; number of somites 

 about 114. 



Hab. Naduvatam, Nilgiris. Pound 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 

 nepbridia, while differing in almost all other essentials, were found 

 together. 



PerichjETA salettensis, sp. n. 



The cUtellum extends over somites xiv,, xv., xvi., and xvii., and 

 is well marked. 



The male pores are situated on somite xviii., without much ridge 

 around them. 



The oviducts open by a median pore in somite xiv. 



The spermathecse lie in somites vii., viii., and ix. ; they present a 

 pair of small appendages. 



The gizzard is situated in somite vi. 



I have no observation regarding intestinal caeca. 



The nepbridia occur in, at any rate, most of the somites ; they are 

 very large and present rosettes of tubules in certain anterior somites. 



The setse 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 setae. 



Length 70 millim., circumference 9 mm. ; number of somites 112. 



Hah. Salem, elevation about lOOU 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. Li 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 papillae in a median pit in somite 

 xviii. 



The oviducts open by a single median pore in somite xiv. 



There are three pairs of s[)ermathecae ; these are placed in somites 

 vi., vii., and viii. The spermathecal pores are placed between somites 

 vi., and vii., vii. and viii., viii. 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 Perichceta species they are very lateral 

 in position. 



» Nouv. Arch. d. Museum, t. viii, 1872, p. 126. 

 =" Ann. & Mag. Nat. Hist., Oct. 1883, p. 217. 



