PANDARUS. 
287 
belonging to the genus, two of which are British. Since 
then the genus has been adopted by Latreille, Desmarest, 
Kroyer, M. Edwards, &c., and several new species added 
to it. 
Anatomy . — The body of the animals belonging to this 
genus is of an irregular oval form. The head is much 
narrower than in the preceding genus, and we see none 
of the furrows in the cephalo-thorax which are so well 
marked in the Dinemourae and Caligidae. The frontal 
plates, however, are more largely developed, especially 
laterally, where they are of considerable breadth, though 
contracted in the centre. 
The thorax is divided into four distinct segments, though 
the first is concealed under the head, and is so closely 
articulated with the second as to be confounded with it. 
Each of these segments has attached to it one or two 
lamellar appendages, extending downwards, and mutually 
covering each other. Those of the first segment are a 
pair, and are situated at the sides of the thorax, leaving a 
space between them, which is occupied by the second joint. 
This joint gives origin to another elytraform appendage, 
which is single, but deeply notched in the middle. The 
third segment has a similar appendage, but much larger, 
extending across the body, and deeply notched in the 
centre also. The last ring has no appendage attached to 
it, but it is of considerable size. 
The abdomen consists of two segments. The first is 
concealed under the second, and has attached to it on each 
side a small appendage, toothed on the inner edge. These 
are considered by M. Edwards as equivalent to the caudal 
appendages. The second is the larger of the two. 
The antennae are very small, as in the last genus, but 
have near their base a small, fleshy, projecting lobe ; and 
the mouth-apparatus resembles closely that of Dinemoura 
also. The foot-jaws are short, and do not differ in struc- 
ture from those of Dinemoura. There is no sternum. 
The feet are four pairs ; they are all composed of two 
