284 Dr. D. Rosa on some 



long as two somites, but is nevertheless comprised between 

 septa 7-8 and 8-9 ; this last septum is pushed backwards and 

 comes nearly in contact with septum 9-10. 



The last heart lies in segment 13. 



The spermathecse lie in segments 6,7,8 ; each consists of 

 a nearly globular sac with a short narrow duct, which is 

 connected at the inner side with a narrow tubular diver- 

 ticulum ; this diverticulum is straight, not enlarged at the 

 end, and extends a little over the middle of the large sac. 



The sperm-sacs in segments 11 and 12 are eacli connected 

 with a minute sperm-reservoir; the sperm-reservoirs of the 

 10th segment are laterally produced into a large lobe, which 

 looks exactly like another pair of sperm-sacs, but it should 

 be mentioned that the true sperm-sacs lying in segment 10 

 prove to be connected with the sperm-reservoirs of the 11th, 

 and not with those of the 10th segment. 



The prostates extend through six segments; they are very 

 irregular in shape and consist of many lobules, which are 

 only loosely connected ; the ejaculatory duct is of moderate 

 length, sigmoid, and does not open into a muscular bulb. 



This species somewhat recalls P. acrophyla, Rosa*, from 

 Sumatra. 



Pericliceta recta, sp. n. 

 (PI. IX. figs. 8-10.) 



Hah. ? 



Of this species I have seen only one specimen, measuring 

 70x5milhm, with 110 somites; its colour (in spirit) is 

 greyish yellow, darker on the clitellum. 



The prostomium is broad and very short, extending only 

 over one fourth of the buccal segment. 



The setae number 44 on segment v., 54 on xii., 60 on xxv. 



The clitellum occupies three segments and shows no setae. 



The male pores are in a line with seta 9 ; they are 3 millim. 

 apart and 12 seta? can be counted between them ; each lies 

 on a narrow, flat, round area of a brown colour. 



The oviducal pore on segment 14 is surrounded by a 

 light circle. 



There are two pairs of spermathecal pores between seg- 

 ments 7-8 and 8-9, only 2 millim. apart, and lying in a line 

 with setae 6-7. 



This species has a number of copulatory papillae, which 

 show the following arrangement : in somite ix. a median 

 papilla lies near the posterior intersegment ; three median 

 papillae are also to be seen respectively on somites xviii., xix., 



* Ami. Mus. Civ. Geuova, vol. xvi. 189G. 



