Earthworms of the Vienna Museum. 121 
fig. 8), that, as in Anteus, the distal extremity of each seta is 
ornamented by shght ridges with a jagged outline. The setes 
present the same character on the clitellam and at the poste- 
rior extremity of the body. I may remark that it is not 
always easy to detect the ornamentation of the sete. It is 
not sufficient to strip off a bit of the cuticle and then to 
examine under the microscope the cuticle and the sete that 
have been accidentally detached in tearing it off. The cuticle 
itself in such a case frequently obscures the markings on the 
sete. 
The sete must be picked out one by one; this is quite 
easy with a large species like Geoscolex maximus ; when the 
body is opened ~ the cavities where the sete are planted are 
seen to be very large, and the sete can be readily seized with 
the forceps and detached. 
The nephridia open, as Perrier and Leuckart stated, 
front of the ventral sete ; they have a large muscular pooe 
In the anterior region of the body the nephridial duct passes 
straight from the tuft of tubules fo the external pore; in the 
hinder region this duct is bent upon itself, but there is no 
cecum such as is found in Anteus. ‘The nephridia there- 
fore show only the very slightest traces of the specialization 
into an anterior and a posterior series that is found in Anteus. 
The funnel, as in other earthworms, depends into the segment 
in front of the one in which the nephridium lies. 
The sperm-sacs are long and were doubled upon themselves 
in the specimen which I examined. ‘The vas deferens where 
it leaves the sperm-sac runs at first forwards and downwards 
side by side with the duct of a nephridium ; ; it opens into a 
large muscular sac which occupies three or four segments and 
is constricted where it passes through the mesenteries. I did 
not notice the three bands figured by Perrier* attached to the 
atrium. 
There are, as: Perrier has stated, no spermathece. 
(3) “Pericheeta leucocycla.” 
The collection contains a number of individuals labelled 
with this name, One smallish individual (no. 16) is evidently 
the type figured by Schmarda. Being quite immature, it is 
impossible to be absolutely certain whether it is really iden- 
tical with a large individual measuring 37 inches in length, 
which has a similar label. So far as it was possible to form 
an opinion from the arrangement of the sete (which show 
dorsal and ventral gaps) and from the general appearance of 
* Looxevt: pianos Lo, 
