SEARLE: ISOPODA. 365 
ONISCIDAE. 
PHILOSCIA AUSTRALIS, sp. nov. 
Body ovate, a little more than twice as long as wide 43 mm.: 10 mm. 
(not including uropoda). 
Head two and a half times wider than long, 1 mm.: 25 mm. Front 
not margined, without median or lateral lobes. Eyes rather large, 
composite and situated in the lateral 
angles of the head. First pair of anten- 
nae minute, inconspicuous. Second pair 
of antennae with the first article of the 
peduncle short; second and third articles 
subequal, and each about twice as long 
as the first article; fourth and fifth arti- 
cles subequal and each twice as long as 
the third. The flagellum is composed of 
three articles, decreasing successively in 
length. The second pair of antennae are 
longer than half the body and extend 
to the posterior margin of the fifth tho- 
racic segment. 
The first three segments of the thorax 
are each a little longer than any of the 
Fig. 8.— Philoscia australis. 
16. X 
last four, which are about equal in length. The lateral margins of 
somewhat truncate. 
width. The first two segments 
_ are partly covered at the sides 
| by the seventh thoracic seg- 
/ment. The first five segments 
are about equal in length. The 
‘sixth or terminal segment is tri- 
angular with apex rounded. Fig. 
The uropoda are long. The antenna. 
pedunele is twice as long as the 
the segments are straight and the epimera are not separated from the 
dorsal portion. The postlateral angles of the seventh segment are 
The abdomen is very abruptly narrower than the thorax, being just 
half as wide, 2 mm. while the last thoracic segment is only 4 mm. in 
9.— Philoscia australis. Second 
2050 >< 
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terminal abdominal segment (measured on the exterior margin). The 
| inner branch is twice as long as the peduncle (measured from the 
