1908.] W. Michaelsen : Oligochœta of the Indian Empire and Ceylon. 231 



Penial setae (fig. 46) about 3|- mm. long, curved to form about a quarter of a 

 circle, very thin, proximally about 16 ^ thick, distally tapering only very little, before 

 the distal end still 15 ,k thick. Distal end curved somewhat more strongly, broadened a 

 little and hollowed at the concave side, having a spoon-like shape, tip of the distal end 

 simple, forming a blunt hook. The surface of the convex side of the distal end bears 

 very many irregular but rather densely distributed, very fine and slender, hair-like 

 spines, closely pressed against the surface and directed towards the distal tip of the 

 penial seta. 



Spermathecae (fig. 45) : Main pouch with a thick, sack-like ampulla and a 

 thin duct about half as long as the ampulla. Into the proximal half of the duct open 

 two diverticula, each consisting of about four nearly globular seminal chambers which 

 externally are separated only by shallow depressions. The seminal chambers are 

 arranged in nearly a fan-like manner ; the under side of the diverticulum is pressed 

 against and attached to the duct of the main pouch ; the whole diverticulum resembles 

 an irregular scale of the duct, proximally leaning against the distal part of the ampulla. 

 The two diverticula are not situated opposite each other, but abreast of each other, 

 sometimes looking almost like one diverticulum somewhat depressed in the middle. 



Habt — Central India, Mainpuri in the United Provinces ; Captain 



H. J. WAIvTON leg. 

 ,, „ Fyzabad in the United Provinces; Major 



F. WAI.L leg. 

 Bihar, Pusa in the Darbhanga district; C. A. P AI VA leg. 

 Remarks. — In most of the specimens from Fyzabad examined I could detect 

 no perfectly formed penial setae, but only imperfect ones, the tips of which appeared 

 as though corroded and embedded in weak sheaths. Besides such setae I found in 

 at least one of these specimens a penial seta just like those described above, 

 projecting out of the groove of the male pore. In all the other specimens from 

 Fyzabad the perfect penial setae must have been lost, probably during the copula- 

 tory act. I suppose that in some cases such imperfect penial setae may have been 

 described as the characteristic forms of penial setae. 



EUTYPHOEUS CHITTAGONGIANUS, MiCHLSN. 



(Plate xiv, fig. 54.) 



E. eh., MICHAELSEN, in Mt. Mus. Hamburg, xxiv, p. 181, f. 25. 



Present two very much softened mature specimens. 



External Characters. — Dimensions: I^ength about 250 mm., greatest thick- 

 ness about 7 mm., number of segments about 250. 



Colour in general grey, at the anterior end dorsally light brownish, laterally 

 and ventrally yellowish. 



Setae small, paired, but not strictly, behind the clitellum aa : ah : he : cd = 12 : 

 4: 8: 5. Before the clitellum more separated, a« : ab: be: cd = 6: 4: 6: 5. Me- 

 dian dorsal distance somewhat larger than half the circumference {dd = csi. |w). 



