THE EARTRWORMS OF LAHORE. 503 



Male pores on large elevated papillae on segment xviii about \u apart 

 from each other 19 or 20 setse intervene. 



Female pore as a small opening in the midventral line on segment xivon 

 the setal ring. 



Spermathecal pores, four pairs in the intersegmental furrows ^— § situated 

 ventro-laterally ^m apart 47 setge intervene. 



Genital papillcB.—lx). line with or slightly internal to the line of the male 

 pores there are a pair of papillse on the segments xvii and xix respectively 

 on each side ; in addition to these in some cases there were papillse on 

 segments xx, xxi, xxii in line with the one on segment xix, the limits varied 

 on both sides even in the same specimen. In one there were papillte on xix, 

 XX, xxii segments on the right side, but only on xix on the left side. 



Internal anatomy. — First definite septum is |, septa % — f very much 

 thickened. Septum % is sHghtly so, while the septum % or ^^ is missing, 

 septum if is also thickened. 



The gizzard occupies segment vii or segments viii and ix when septum ^ 

 is missing. The intestine lies in a straight line between the gizzard and 

 the anus, it becomes wider after segment xiv. The typhlosole is not so 

 well marked, but is only a slight ridge projecting into the intestine. 

 There are a pair of intestinal diverticula in xxvi, these are elongated, conical 

 without secondary projections, they extend forwards up to segments xxi. 



Two pairs of hearts in xii and xiii. There are a pair of " blood glands'''' 

 in each segments lying on either side of the dorsal blood vessel after 

 segment xxvi. 



The Nephridial Si/stem is micronephric, the nephridia are a system of 

 diffused tubules with many funnel-like openings in each segment ; a large 

 mass of nephridial tubes is to be seen on either side of the oesophagus in 

 segment vi. 



Two median testicle sacs in segments x and xi, and three pairs of lateral 

 seminal vesicles in x, xi and xii segments ; the seminal vesicles communi- 

 cate with each other and are of a large size. 



The Prostates are large occupying segments xvi — xxi. They are irregu- 

 larly lobulated. The thick prostatic duct begins in line with the septum 

 Jl and loops forwards to open at the male pore in x'^iii segment. 



Accessory glands lie close to the prostates in segments xvii and xix. 



Ovary and oviduct funnels lie in segment xiii. 



Spennathecce (Fig. VI, Plate II) are four pairs in segments ^i — ix. The 

 ampulla is ovoid or somewhat globular in shape, the duct is slightly longer 

 than the ampulla ; the diverticulum is rather elongated and narrow and 

 reaches up to the ampulla. 



Cocoons of Fheretima posthuma. — While digging for this worm a number 

 of cocoons were also found. These were of a faint yellowish colour of the 

 following size : — Length 4^ mm., diameter 2>\ mm. These were barrel shaped 

 pointed at both ends and appeared much shrivelled at both ends. (Fig. 1 , 

 Plate I). Some were in very early stages showing eggs only while one 

 contained a single fully developed worm lying in an albuminous mass, 

 with no trace of the other eggs. It is rather curious that of the many 

 eggs laid in a cocoon only a single one should develop, the rest all 

 degenerating to supply food for that single individual. This is well known 

 in other cases. 



Pheretima heterochceta (Mchlsn.). 



Fairly widely distributed throughout Lahore. 

 External characters — 



Length. — 125-135 mm., diameter 4-5 mm. Segments about 110. 



Colour, — Yellowish or brownish, clitellum however always brownish. 



Prostomium epilobous (|.) No secondary annulation of the segments. 



