328 DESCRIPTIONS OF EARTHWORMS. 
grooves VII/VIII and VIII/IX; the male pores are repre- 
sented by fissures, with a crenulated border and surroun- 
ded by a glandular wall. There are no copulatory papillae. 
The setae are arranged in a continuous circle, upon a 
prominent ridge of white colour; no setae on the clitellum. 
Two pairs of spermathecae; each of them (fig. 8) consists 
of a not very large, globular sac, with short duct and of 
a diverticulum, represented by a long, slender, twisted 
tube, which terminates in a small pyriform vesicle. Before 
terminating in this vesicle thee tube shows a large, oblong 
dilatation. The prostata is a rather large gland, consisting 
of numerous lobes, and opening on the exterior by a 
straight, narrow, membranaceous duct, which terminates 
in a dilated sac. 
This species appears to be allied to P. fasciata Rosa 
from Engano. 
Perichaeta musica Horst. 
A single specimen from the Gedeh (Java), collected by 
Dr. Vorderman. 
This specimen has a singular appearance, being rather 
stout but very short. The diameter of the body in front 
of the clitellum is 17 mm.; its length is only 21 cm. The 
number of segments is about 65. 
Pontoscolex corethrurus F. Müller. 
Several specimens from the Lampongs (Sumatra), collec- 
ted by Dr. Vorderman. 
Benhamia malayana Horst. 
Two specimens from Poeloe Samao, by Dr. ten Kate; one 
specimen from Tandjong Morawa (Sumatra) by Dr. Hagen. 
Benhamia floresiana Horst. 
Two specimens from Amarassi in Timor, collected by 
Dr. ten Kate. 
Notes from the Leyden Museum, Vol. XV. 
