Two ncio Earthworms. 459 



The spcnn-sacs I could not detect at all, so they must be 

 very small. The spennidiical inlands are short, not so ionsf as 

 the diameter of the bo ly, and lie in one or two curves. The 

 muscular duct is very slendcM-. I have already referred to 

 the absence of penial setaj. 



The S|)ermatheca3 are particularly small and inconspicuous. 

 They lie in the usual sei^meuts, i. e. viii and ix, and each 

 consists of a sm\ll oval pouc!i without diverticula, [ particu- 

 larly emphasize the absence of diverticula, since this is one of 

 the chief differences from the closely allie 1 0. Aitkeni. 



Ilah. Calcutta*. 



(2) Benliim/a t(itiganyik<jej sp. n. 



I liave describ 'd elsewhere f two species of this genus 

 which Mr. J. E. S. Moore collected during his Tanganyika 

 Expedition. lie has recently been so good as to place in my 

 hands another Benhamia which appears to be new. The 

 differences which exist among the species of this now extensive 

 genus are apt to be not large; it is desirable, therefore, to be 

 as minute as possible in detailing the anatomical characters. 

 The present species, for example, if only such generalities as 

 are made use of by Dr. Michaelsen in his useful key for the 

 disciimination of species I are employed, would probably be 

 referred to his species Benliamia sijlvestris. 1 shall, however, 

 bring forward reasons which lead me not to associate the 

 specimen collected by Mr. Moore with Benhamia syloestrls, 

 but to create a new species for it. 



'i' he worm is I 6 millim. long and G millira. in diameter. 

 It consists of about 112 segments. 



'1 he colour is yellowish with a touch of green; the clitelluni 

 a dirty white. 



The prostomium is epicheilous; it is prolonged about half- 

 way over the buccal segment. 



The dorsal pores commence in front of the clitelium, but I 

 am not able to fix the segment whcie they commence with 

 accuracy. The .seta', are strictly |)aired. 



'i he clitelium is more extensive than m B. sijlvestris \ it 

 extends over segments viii-xxi and is not saddle-shaped, but 

 is developed all round the body. 



The two oviducal pores are upon segment xiv and lie to 

 the inside of the ventral couple of set*. The spermathecal 

 pores, on the other hand, correspond in position to the ventral 

 pair of setje; they lie intersegmentally — vii/viii and viii/ix. 



* I owe the specimen to the kindness of Mr. F. Finn, F Z.S 



t Proc. Zool. Soc. 190J, ii. p. IHO. 



t Oligochseta in 'i)as Thierreicb," 1900, p. 305. 



