1920.] J. Stephenson : Oligocha .eta from India and E. Persia. 221 



ous round apertures near the middle line, the same distance apart as the male 

 pores. 



Internal Anatomy : — The first septum appears to be 5/6 ; all are present, and all 

 are thin. 



The gizzard, in segment vi, was soft and rather small in the original specimen 

 from Igatpuri ; in the specimen from Bombay however it was of large size, but soft 

 and yielding easily to pressure with a needle ; in shape it was rather cylindrical, but 

 somewhat narrower posteriorly. 



There are no calciferous glands ; the gut may be bulged laterally in segments 

 xiii and xiv. The intestine begins in xxiii. 



The last heart is in xiii. 



The endings of the nephridia are in the same line. 



Testes and funnels are free in segments x and xi ; these segments are full of 

 flocculent material (developing spermatozoa). 



Seminal vesicles occupy segments xi and xii ; they are large paired sacs, not 

 fused in the middle line. They are rounded in form, their borders not indented or 

 lobed (in the Bombay specimen they appeared somewhat granular, as if made up of 

 minute lobules). Those in xii are the larger, pressing back septum 12/13. 



The prostates are compact masses occupying segment xviii, the limiting septa of 

 which are much bulged apart by their bulk ; each consists of an anterior and poste- 

 rior lobe, from between which the duct issues. The duct is short, straight, and narrow, 

 and passes transversely inwards. 



The large ovaries and the funnels are in segment xiii. 



The spermathecae, in segments viii and ix, present an elongated ovoid or irregu- 

 lar ampulla with a short stout duct, a third or a quarter as long and a third as wide 

 as the ampulla. There is a single diverticulum, attached to the base of the ampulla, 

 sessile, cauliflower-like and consisting of a number of small seminal chambers ; in ex- 

 tent it is one-third or a quarter as long as the ampulla, against the lower part of 

 which it may be flattened (fig. 24). 



The penial setae are -^\--^2 mm. long, and 15* thick in the middle. The shaft 

 is almost straight, very slightly bowed, — more so at the distal end ; the tip is simply 

 and rather bluntly pointed; there are about six rings of rather small spines near the 

 tip. (In the Bombay specimen the setae were a little larger, — 68 mm. long, and 20a« 

 thick, with seven well-marked rings of small spines, and two or three rings only very 

 faintly indicated proximal to these). 



Remarks : — The present species resembles P. millardi, — very closely in many res- 

 pects. The distinctive difference is in the spermathecae, which there have no diverti- 

 culum. Minor differences are the setal rings, — the breaks dorsally and ventrally being 

 smaller or mostly absent here ; and perhaps the penial setae, which have fewer rings 

 of spines in the present species. 



Perionyx spp. 

 In the various collections examined there were a number of specimens of this 

 genus which could not be referred to any species on account of immaturity. Some 



