iqiy.] J. Stephenson : Indian Oligochaeta. 375 



am inclined to attribute more value to the position of the testis- 

 sacs (Michaelsen, '^on septum 9/10, depending from it, forwards 

 and backwards, into the gth and loth segments"), and perhaps 

 also to the absence of copulatory organs (though these were not 

 present in all of Michaelsen's specimens). 



The asymmetry of the testis-sacs in the specimens described 

 above is remarkable ; on one side there is an approach to the con- 

 dition of D. ghaiensis and D. rangamaiiana. The indications of 

 dorsal pores are also interesting. 



I do not myself think that there is sufficient ground for sus- 

 pecting an identity between D. nepalensis and Bourne's D. uniqua. 

 Michaelsen (13) says at the beginning of his description that the 

 two may perhaps prove to be identical ; and at the end, that '' this 

 species comes near to D. uniqua (Boarne), if it is not identical with 

 it." But after mentioning the large and peculiar .spermathecal 

 atrium he adds : " I do not believe that Bourne could have over- 

 looked the above- described very characteristic structure or that he 

 would have abstained from mentioning it had it been present in his 

 species." I fully agree that Bourne would certainly have given 

 an unmistakable description of this peculiar structure, had it been 

 present ; moreover^ the prostates in the present species are far too 

 long, and too twisted or bent, to be conceivably described as " teat- 

 like " (as Bourne does for his form) ; nor are the ovaries free in the 

 present species, as Bourne says for D. uniqua, but enclosed in a 

 typical ovarian chamber (Michaelsen, "apparently enclosed"). 

 At the time that Michaelsen wrote, it was doubtful whether any 

 (endemic) species of the genus existed elsewhere than in South 

 India, and it was reasonable to look with suspicion on species which 

 contradicted conclusions otherwise apparently well established. 



Fam. MEGASCOLKCIDAE. 



Subfam. MEGASCOLECINAE. 



Gen. Pontodrilus. 



Pontodrilus bermudensis, Bedd. f. ephippiger (Rosa). 



W. 66/1. Near Chiquilim Point, Mormugao Bay, Portuguese India ; under 

 stones at edge of brackish water. 29-ix-i9i6. S.Kemp. A number of 

 specimens. 



W. 126/1. Mormugao Bay, in small bay between Goa and Vasco, shore 

 collecting, under stones Sept. 1916. S. Kemp. Several specimens. 



Gen. Perionyx. 



Specimens belonging to this genus, unidentifiable because of 

 immaturity, were found at Kalimpong and Pashok, in the Darjiling 

 District, E. Himalayas. 



Perionyx excavatus, E. Perrier. 



W. 69/1. Rangamati, Chittagong Hill Tracts, Bengal, ii-vii-1915. K. 

 Hodgart. Six specimens of moderate size and one very small one. 



