1914] J.Stephenson: Oligochaeta from Northern India. 361 



mens dissected, what I take to be rudimentary seminal vesicles 

 were present ii^ x also ; these were a pair ot small roundish excres- 

 cences on the anterior face of septum K, to wh.ch they were 

 attached by a comparatively broad base. 



The visa defercntia from the two funnels of the same side 



•soon converge and run alongside, but do not unite; they pierce 



the body wall, still ununited, close to, and on the anterior side of, 



'''''rLtt7T:^l%Tot prostates, which occupy segments 

 xviii-xix bulging lack septum JX. Each is tubular, and much 

 coiled The due? is gcntlv looped once or twice, and passing on 

 the whoJ witb a forward direction ends on the inner surface of 



'""'Xroflr^^^^'ZTosToi a number of moniUform strands, 



»"^ ?hV' -ngl" ^:^Z^^W M) Ue in segment viu. 

 The ampu la is somewhat conical, directed with its apex back^ 

 ine ampuud i <-nntinued forwards at its base into the 



cTl-t v iTnar ;: and~.l. duct. The duct is gently bent 

 StTan S-shZpe. in length it is about | that of the ampu Ua and has 

 a curious diverticulum on its posterioi side. This is » 'arge "lami 

 flowe °U^e aggregate ol small chambers, bound down to the duct 

 W the base*^of the ampulla by connective tissue, on the other 

 side of the same specimen the chambers were in two aggregate 

 nstead of a single' one, the two aggregates be„^ separated by 

 a narrow interval along the posterior side of the duct. 

 Mn npnial setae were discoverable. 



?he peculiar ty of the above form lies in the disposition of the 

 nosterio' mak o gans. I have examined several specimens, and it 

 Fs un or"tu"a te that the actual apertures are invisible or almo^ 

 so e.ternallv; they could be distinguished, and that not with 

 ab'solu e ce ainty, in one only. In any case there seems to be no 

 more than one p^i r of pores. The absence of setae a of segment 

 "m seems consent. As seen internally "- P-tatic duct cer 

 tainlv oierces the bodv-wall in xviii ; but in two out ot tnree 

 soedm^^ s the vasa defercntia could not be traced to their end and 

 the JSation of vas deferens to prostatic duct above described was 

 seen in one specimen only. 



Subfam. OCNERODRILINAE. 

 Ocnerodrilus (Ocncrodrilus) occidentalis, Eisen. 



Rawal Pindi , March 191 r ; Ibrahim. 



Mardan (N.-W. Frontier Provmce) ; 26-xu 1913 . Bami Far- 



'^^"^Length 36 mm. when living and moderately extended ; diam 

 1 mm segments 70. The followmg pomts, certam of which 

 LnfiTm' Mic^aelsen's opinion regarding the non-vahdity of the 

 var. arizonae, Eisen, are worthy of mention :— 



