1914.] J.Stephenson: Oligochaeta. ^ 369 



The spermathecal apertures are small, in furrow |, a little 

 distance internal to the line of setae c. 



The first distinguishable septum is t ; this and the three 

 following are extremely stout, the rest thin. 



Five well-developed gizzards are present in segments xiv-xviii ; 

 the portion of the oesophagus in xiii, thick and muscular, might 

 be described as a rudimentary gizzard. 



The testicular sacs are subspherical, mainly situated in seg- 

 ment X, but slightly bulging forwards also on the other side of 

 septum tHt, into segment ix. The duct could only be distinguished 

 in segment x, not in ix. The prostate, perhaps not fully deve- 

 loped, appears as a small oval to circular elevation on the floor of 

 segment x. 



The spermathecae are small tubular or sausage-shaped sacs, 

 attached to the posterior face of septum | ; the curling duct 

 bends outwards at its lower end. No trace of an atrium was 

 visible. 



Ovaries were apparently not developed. The egg-sacs, also 

 probably incompletely developed, are small, tubular, and confined 

 to segment xii. 



The doubt that I have expressed above with regard to the 

 identification of this specimen is caused by the fact that D. 

 pellucida has hitherto only been found in Southern India (1600 

 miles distant from the Abor country), that the genus is rare in the 

 intervening region, that the present specimen is immature, and 

 that there are slight differences between it and the typical form 

 of the species (e.g. in the setal intervals, and the presence or 

 absence of a small atrium at the end of the spermathecal duct). 

 But D. pellucida is apparently a species with a number of varieties 

 (Michaelsen, 4), and if the present specimen does not actually be- 

 long to the typical form of the species it at least comes very near 

 it, and can hardly be more than a variety. It does indeed, in the 

 arrangement of the setae , the absence of the atrium at the end of 

 the spermathecal duct, and possibly in the shape of the sperma- 

 thecal ampulla, show some affinity to D. pellucida var. bournei 

 (Mchlsn.); audit is mainly the absence of pigment that decided 

 me against identifying it with this form, since the features of the 

 spermathecal apparatus just referred to might perhaps be due 

 to immaturity-. 



Drawida pellucida (Bourne) var. stew^arti, var. nov. 



Kenging ; 25-xi-i9ii ; a single specimen, a fragment of the anterior end 



{F. H. Stetvart). 

 Rotung, alt. 1300 ft., 24-\ii-i9ii ; a number of specimens, mostly mi - 



mature {F. H. Steivai'tJ. 



I propose fir^t to describe the specimen from Renging and 

 will then add a few lines on those from Rotung. 



Length of fragment i^ inches ; diameter 3^ mm.; colour a 

 faint olive-green throughout. Segments present 76. 



