522 DESCRIPTIONS OF EARTHWORMS. 
ness of their diverticulum, which occupies a great portion 
of the segment; each of them consists of a thin, folded 
sac, with a short duct, and of a large U-shaped, muscular 
diverticulum, which is much longer than the main sac and 
near its distal end suddenly narrows and terminates in a 
globular vesicle. 
The eight and ninth segments are absent. The gizzard, _ 
occupying segments IX and X, is bell-shaped, not very long. 
The intestinal coeca of segment XXVI, are not very large, 
extending over four segments. Two pairs of large seminal 
vesicles occupy segments XI and XII. In segment XIII, at- 
tached to the anterior septum above each ovary, a comma- 
shaped body was observed; perhaps they represent a se- 
cond pair of receptacula ovorum, as found by Beddard in 
P. mauritiana. ') 
Perichaeta capensis Horst. *) 
Specimens were collected in Timor by Dr. ten Kate, at 
Buitenzorg by Dr. Boerlage and at Tjibodas by Dr. van 
Bemmelen. 
Perichaeta urceolata n. sp. 
Ten specimens were collected by Dr. Vorderman in the 
Lampongs (Sumatra). 
A slender worm, tapering at its anterior and posterior 
extremity, of a pale yellow-brown colour, with the zones 
ot setae whitish. The largest specimen measures 110 mm. 
in length. The cephalic lobe reaches back till the half of 
the buccal segment, which is small. The clitellum is distinct, 
devoid of setae. 
The spermathecal pores are represented by a pair of distinct 
fissures, situated laterally in the intersegmental groove V/VI. 
A single oviducal pore on a white area. The male pores 
are plain fissures, not surrounded by a wall, situated in the 
1) Proc. Zoolog. Society, 1892, p. 170, pl. X, fig. 5. 
2) Loe. cit. p. 62, pl. IH, figs. 24—26. 
INotes from the Leyden Museum, Vol. XV. 
