318 DESCRIPTIONS OF EARTHWORMS. 
Among the Perichaeta-specimens from Flores there is 
one individual, showing only two spermathecal pores in 
the intersegmental groove VII/VIII. It is a slender worm, 
tapering posteriorly, and measuring 140 mm. in length; 
in the middle region of the body the intestinal canal is 
visible through the transparent body-wall. 
The cephalic lobe is distinct, extending over two thirds 
of the buccal segment. 
The first dorsal pore is visible in the groove between 
segments XI and XII. . 
The spermathecae occupy segment ViI; they consist (fig. 2) 
of a long pyriform sac, provided with a short and wide 
excretory duct; a small, globular diverticulum communi- 
cates by a short and narrow tube with the main pouch. 
The prostata is divided by a deep fissure in two halfs, 
which consists each of numerous small lobes, separated from 
each other by shallow grooves. On the segments in front 
of the clitellum about 40 setae can be counted. 
This specimen shows no resemblance to another Peri- 
chaeta-species from Flores, described by myself in an 
earlier paper '); perhaps it will be identical with P. san- 
girensis Mich *). 
Perichaeta posthuma Vaillant. 
Hight specimens, collected by dr. ten Kate in the island 
Groot-Bastaard. 
Perichaeta sp. 
One specimen, collected by dr. ten Kate in the island 
Groot-Bastaard. 
Besides the specimens of P. posthuma, dr. ten Kate 
collected in the island Groot-Bastaard another earthworm, 
belonging also to the genus Perichaeta; unfortunately this 
1) Earthworms from the Malay Archipelago; Max Weber, Zoolog. Ergeb- 
nisse einer Reise in Niederl. Ost-Indien, Bd. II, 1892, p. 70, pl. III, fig. 28. 
2) Jahrbuch Hamburg. Wissensch. Anstalte, VIII, 1891, p. 36. 
Notes from the Leyden Museum, Vol. XV. 
