HERMANNIA BISTRIATA. 463 



lateral edges run almost straight backward for about 

 one-third of its length, and then it again expands with 

 a large rounded projection on each side; the pseudo- 

 stigmata are placed about the centres of these rounded 

 elevations. There are two longitudinal, irregular 

 ridges, one a little on each side of the median line, 

 and there is a slight, transverse, irregular ridge across 

 the cephalothorax behind the pseudo-stigmata; between 

 this ridge and the progaster there is a deep sulcation 

 or trench. The whole cephalothorax, except the ros- 

 trum, is thickly covered with irregular rounded pits, 

 which leave ridges between them as wide as the dia- 

 meter of the pits. These pits vary greatly, but average 

 about 120 to the millimetre. The rostral hairs (omitted 

 in drawing) are small and curved, the lamellar hairs 

 spatulate, large, and slightly dentated at the inner 

 distal edges. Pseudo-stigmatic organs moderately 

 long, and filiform or rod-like ; interlamellar hairs short, 

 thick, white, and incurved. Apodemata joined to the 

 sternum. 



Legs short, thick, conical; fourth pair scarcely 

 passing the hind margin. The three central joints of 

 the first and second pairs of legs each have a whorl of 

 short, thick, sharply- curved white hairs, and there are 

 two or three extra similar hairs at the outer edge of 

 each second, and the inner edge of each first femur. 

 There are three similar hairs on the outside of each 

 femur and two on each genual and tibia of the third 

 pair, also similar hairs on the outside of each joint 

 except the tarsus of the fourth pair. The hairs on the 

 upper edge of the tarsi are similar in character to 

 those on other joints ; the remaining hairs on the tarsi 

 are fine. The claws are short, thick, and strongly 

 curved. 



Abdomen considerably longer than broad ; truncated 

 anteriorly, slightly truncated posteriorly, but with a 

 rather rounded outline there. The progaster is a rough 

 transverse ridge extending right across the creature. 

 From this transverse ridge six longitudinal, irregular, 



