REVISION OF THE SARCOPSYLLIDAE 
47 
First Segment 
Second Segment 
Third Segment 
Fourth Segment 
Fifth Segment 
Mid tarsus, $ 
7 
IO 
7 
5 
18 
9 - 
9 
'4 
9 
6 
18 
Hind tarsus, $ - 
26 
17 
1 0 
8 
18 
9 - - 
33 
2 1 
8 
18 
Modified Segments. — The upper process of the clasper (PI. Ill, Fig. 22) bears 
two long bristles ventrally near the apex, and a shorter one at one-third before the 
apex. The third process (F) is about two-thirds the length of the manubrium (M). 
The narrow proximal portion of this process is half the length of the free distal 
portion. The internal, vertical, portion of the ninth sternite (PI. Ill, Fig. 22, ix St.) 
has about the same width as the external, horizontal portion, both being equally 
slender. 
$. The eighth tergite bears a row of short stout bristles before the apex, and 
some longer ones further proximally (PI. II, Fig. 15). The bristles vary somewhat 
in number. The stylet is one-third longer than it is broad, bearing at the apex one 
long bristle accompanied by a short slender one. 
Length: $, 1-3 mm. ; I '8 mm. 
We have a series of specimens from West Australia, collected by Mr. C. J. 
Tunney, as follows : — 
1 $ . From Kojonup, oft Bettongia lesueuri. 12 th March, 1904. 
129 ?• From Kojonup, off Bettongia lesueuri. 12th March, 1904.. 
2. Echidnophaga bradyta, spec. nov. 
(PI. II, Fig. 13, r 9 ; PI. Ill, Fig. 23) 
A very dark coloured species. 
Head. — The frons is subangulate or rounded in the £ } and obtusely angulate in 
the middle in the The ventral genal process is curved backwards. The oral edge 
from the apex of this process to the ventral corner of the frons is as long as the genal 
edge measured from the base of that process to the apex of the posterior genal process. 
The occiput, which is in the dorsal line two-thirds the length of the frons, bears one 
long bristle near the apex above the antennal groove, there being another rather long 
one obliquely above this bristle, and several minute hairs on the side and back of 
the occiput. The hind margin of the occiput is in the $ dilated at or below the 
middle into a more or less prominent lobe. The mandibles are near the base much 
broader than the palpi. The last segment of the latter is longer than the first, the 
proportional lengths of the segments being in the $ 15 to 19, 18 to 22, 15 to 16, 
