igoS.] W. M1CHAEI.SEN : OligochcBta of the Indian Empire and Ceylon. 



239 



Dorsal pores present on the clitellum and the following part of the body; not 

 seen in the anteclitellar region. 



Clitellum ring-shaped, occupying the segments ^ of 13 — 17 ( =4^^). 



Male pores: On the 17th segment there is a pair of deep grooves of somewhat 

 irregular shape, surrounded by more or less broad swellings which meet in the ventral 

 median line and are slightly interrupted before these grooves. Bach of these grooves 

 is somewhat narrowed by a papilla which is situated at its anterior margin about in 

 the lines of setae h, and which I suppose to bear the male pore. 



Female pores before setae a of the 14th segment. 



Spermathecal pores one pair at the intersegmental furrow 7-8 between the 

 lines of setae h and c. 



Copulatory organs: Transversely oval areas or slits, intersegmental, paired, 

 about in the lines of the ventral pairs of setae, laterally somewhat transgressing the 

 lines of setae h, somewhat variable in number and arrangement : 

 postclitellar on the intersegmental furrows i8-ig and 19-20 (one speci- 

 men), or 18-19, 19-20, 20-21 (two specimens, in one specimen on the 

 two hinder furrows only at one side), intraclitellar on 15-16 and 16-17 

 (in one specimen indistinct), and anteclitellar in one specimen, a pair 

 of smaller ones in the intersegmental furrow 9-10. 



Internal Anatomy.— Septa 4-5, 5-6 and 8-9 — lo-ii very 

 thick, 6-7 and 7-8 missing. 



Alimentary tract: A big gizzard between septa 5-6 and 

 8-9. (esophagus in the 12th segment swollen, containing a pair 

 of thick lateral calciferous glands, depending from the wall into the 

 lumen. Intestine beginning in the 15th segment, in the anterior part 

 sacculated laterally, with a small simple typhlosole not beginning 

 before the 26th segment (in this segment ?). 



Circulatory system: Dorsal vessel simple, last hearts in the 

 13th segment. 



Nephridial system micronephric. 



Anterior male organs: A pair of great sperm-duct-funnels ventrally 

 in the nth segment meeting above the median ventral line, enclosed in separate (?) 

 seminal vesicles which communicate with a pair of very great, broad, much lobed 

 sperm-sacs ; the sperm-sacs occupy segments 12 — 16. 



Prostates tubular; glandular part very long, much coiled, occupying about four 

 segments; muscular duct thin, very much shorter, but relatively long, describing two 

 long loops. Sperm-ducts relatively thick and distinct, but not with a thickened mus- 

 cular distal end, opening from behind and laterally into the same pores as the prostates. 



Penial setae (fig. 40) robust, about 5 mm. long and in the middle 50 ,jl thick, 

 slightly but not much tapering towards the distal end, nearly straight, somewhat bent 

 only in the distal half. Distal end somewhat flattened, but not broadened, bent off 

 in a wide angle. The distal half of this bent flattened part of the distal end is 

 smooth and abruptly set off from the following part ; it appears as if the latter were 



Fig. 34. 



Eutyphoeus ander- 

 soni. 



