Mallopliaga from Marsupials 
reaching to half the length of the prothorax, the inner very fine and 
short. The prothorax is almost as wide as the head, somewhat angulated, 
carrying three curved spines on each wing, and a row of four hairs of 
even length on the hind margin. The mesothorax is short and narrow, 
with the usual spines. The metathorax is narrow anteriorly, but 
widens considerably posteriorly, and is broadly rounded on the abdomen. 
It carries a few fine hairs in each antero-lateral area, a row of four 
longish hairs about the middle of its length, and a row of six close to 
the hind margin, of which the outer pair are long, the next short and 
spinous, and the median pair shorter, but stouter, than the outer pair. 
The abdomen is broadly ovate, and exhibits the characteristic form and 
chaetotaxy of Boopia. 
The spines upon the under side of the head, which have been mainly 
instrumental in inducing us to include the species in the genus Hetero¬ 
doxies, are very short, and are not situated at the base of the palps, 
as in the latter genus, but on the chitinous framework which supports 
the palps, at the level of the eyes. 
Measurements in millimetres. 
¥ 
Length 
Breadth 
Head 
0-206 
0-386 
Prothorax 
0-170 
0-375 
Mesothorax 
0-054 
0-206 
Metathorax 
0-189 
0-353 
Abdomen 
0-960 
0-756 
Total length and 
greatest breadth 
1-579 
0-756 
Genus Paraheterodoxus n. 
Characters of the genus. In many respects intermediate between 
Boopia and Heterodoxus. General appearance that of Heterodoxus , with 
acutely rounded temporal angles, produced behind the occiput, and a 
very slight post-ocular emargination. A strong chitinous bar crosses 
the head dorsally, above the mandibles and bases of the palps, as in 
Boopia. On the under side of the head a pair of stout spines, not at 
the base of the palps, as in Heterodoxus, but posteriorly, on the gular 
margin. Thorax as in Heterodoxus, but with hind margin of prothorax 
angulated, not evenly rounded; and with sinuous lateral margins to 
the metathorax. Legs, especially the third pair, very strong, and beset 
with spines. The post-axial margin of the second femur of the d exhibits 
