376 Dr. F. Meinert on the Campodee, 
the back and sides, touching or even lapping over the lateral 
margin of the corresponding ventral shields. The last three 
rings are destitute both of these appendages and of the sacs. 
The sexual orifice is behind the eighth ventral shield, in a conical 
protuberance, which is simple in the male, but in the female 
almost bifid. The ninth and tenth rings are closely united, but 
have, as already stated, each its own independent set of mus- 
cles, the tenth ring accommodating besides the tensors and 
flexors of the long cerci. Behind the posterior margin of the 
tenth dorsal shield a triangular pointed appendage is seen pro- 
truding, which is the anal plate mentioned above in the deserip- 
tion of Japyx, and which here, too, is too small to prevent the 
anus from opening through the extremity of the tenth ring. 
Below the anus two similar, but shorter, appendages are ob- 
served. 
The whole animal, particularly the upper side, has numerous 
setae, some of which are large, subdivided and disposed in rows 
round the body; each ring has one such row, and the last ring 
has two of them. On the fore part of the animal the laciniated 
setze lie tolerably close to the body; but those on the last six 
rings stand out from the body almost perpendicularly. 
The long many-jointed filiform cerci, which rise from the last 
abdomen-ring, possess round each joint, or at any rate round 
those nearest the base, a row of a few such laciniated sete. 
The cerci break off very easily, wholly or in part, and the joints 
are not always very distinctly separated from each other ; it is 
therefore difficult to indicate the number of joints and relative 
length of the cerci; in those of the Danish specimens, however, 
I have usually counted from eleven to fourteen joints. 
Spiracles are only found on the thorax-rings; the largest are 
those of the prothorax, which are situated on the underside far 
behind, almost on the sides in the extreme margin of the pro- 
sternum. The two other pairs of spiracles are smaller, circular, 
and situated on the upperside behind the dorsal shields of the 
second and third thorax-ring. 
The three ganglia of the thorax are proportionally narrow ; 
but I have not had an opportunity of examining the rest of the 
nervous system sufficiently. 
The digestive tube is straight; and the duodenum reaches 
from the second or the third thorax-ring to the middle of the 
eighth abdomen-ring. There are no Malpighian vessels; but 
the lower end of the duodenum is, in Campodea, surrounded by 
a circle of about sixteen rather large glandular cells. 
The ovaries and testicles consist of two undivided, long and 
wide tubes, opening, as already stated, behind the eighth ventral 
shield, 
