668 DR. A. G. BOURNE ON INDIAN EARTHWORMS. [DeC. 21 



Length 100 millim., circumference 9 mm. ; number of somites 123. 

 Hab. Burliar, 2000-3000 ft. 



PERICHiETA HULIKALENSIS, Sp. U. 



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

 is well marked. 



The male pores are situated in somite xviii., and are rather near 

 together, and placed upon slight papillae. 



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



The spermathecse are placed in somites vii. and viii. ; they present 

 a single filiform appendage. 



No nephridia were observed. 



I believe intestinal diverticula are present in the usual position. 



There are about 42 setae per somite. The ventral gap is equal to 

 4 ordinary gaps, and the dorsal gap to 7 ordinary gaps. Setae are 

 present on the clitellum. 



No special setae were observed. 



Length 200 millim., circumference 9 mm. ; number of somites 209. 



Hab. Hulikal-drug, Nilgiris. Elevation about 6000 ft. 



PERICHiETA MIRABILIS, Sp. U. 



The clitellum extends over somites xiv., xv., and xvi., and is well 

 marked. 



The male pores are widely separated, and situated on low papillae 

 in somite xviii. 



The oviducts open by a median pore in somite xiv. 



The spermathecse are situated in somites vi., vii., viii., and ix. ; they 

 present a single appendage. They open, as is usually the case, exactly 

 between the somite in which they lie and the preceding somite. 



The gizzard is situated in somite x. 



Intestinal caeca are present in somite xxvi., and run forwards. 



Nephridia seem to be present in certain anterior somites only, as 

 in P. gracilis. 



There are four pairs of groups of small nephridia in the posterior 

 portions of somites v., vi., vii., and viii., respectively, and these open 

 on minute circular papillae which are placed in diamond-shaped 

 depressions lying in the posterior portion of the somites, in which 

 the nephridial groups lie, and just ventrad of the nephridiopore 

 which lies between each of the somites and the succeeding somite. 



There are further two pairs of groups of nephridia lying in somites 

 vii. and viii., respectively, and opening on similar papillae placed 

 ventrad of those above described, and just anterior to the seta-ring 

 in each somite. The further details with regard to this remarkable 

 arrangement I hope to work out on a future occasion. I may 

 mention here that I at first mistook these nephridiopore-bearing 

 papillae for the pores of the spermathecae, and it is quite possible 

 that previous observers have done the same thing in other species of 

 PerichcEta. It needs the most careful and repeated observation to make 

 out the exact arrangement. There 39 setae per somite, with no gap 

 either dorsally or ventrally. It is always possible, however, to re- 

 cognize the median ventral or dorsal lines, as both ventral and dorsal 



