622 Wisconsin Academy of Sciences, Arts, and Letters. 
cephalothoi^x, is one-fifth wider than long, and is very slightly 
wider in front than behind. The front eyes are large and 
form a plainly curved row. They are close together in the 
male, separated in the female. The middle are less than twice 
as large as the lateral. The second row is halfway between 
the others. The third row is narrower than the cephalothorax. 
The clypeus is narrow. The male falces are long, horizontal 
and divergent, with long, curved fangs. On the upper side is 
a long, pointed apophysis at the proximal end, and a short, stout 
one at the distal end. The under side has a small tooth near 
the middle and a very long, wide, blunt ridge, much longer than 
it is high, at the distal end. In the female the falces are 
vertical, with one conical tooth in the middle of the lower mar¬ 
gin, and two, nearer the base, on the upper side. The sternum 
is slightly truncated in front. The coxae of the first pair are 
widely separated. The labium is wider than long and is one- 
third as long as the maxillae, 
The spines are very long. Both first and second legs, be¬ 
sides laterals, have 3-3 under the tibia and 2-2 under the meta¬ 
tarsus. 
There is a slight enlargement in the third leg, at the junc¬ 
tion of the tibia and metatarsus, but the patella of the first, 
unlike that of B. Shelfordii, is normal. 
B. manicatus E. S. from Borneo has one conical tooth at 
the base of the upper margin of the falx, while the lower side 
has one at the distal end, and also a long, pointed apophysis 
about three times its own width from the insertion of the fang. 
The third leg has the junction of the tibia and metatarsus en¬ 
larged, and the patella of the first is plainly longer than wide, j 
The first and second legs, besides lateral spines, have 3-3 under 
the tibia and 2-2 under the metatarsus. 
Our specimens are rubbed. The male has the cephalothorax 
reddish-yellow with a wide white band over the middle of the 
thorax and a large white spot over the first row of eyes. The 
eyes of the second and third rows are on black tubercles. The 
hairs around the eyes are red. The sides are bare. The ab¬ 
domen is brightly iridescent on the back and is marked on the 
