162 Mr. R. I. Pocock on new Species of Ghilopoda. 



second, and twenty-third, marked with three longitudinal 

 sulci, one median posteriorly abbreviated, and on each side 

 one lateral, running from the sides of the anterior border to a 

 point on a level with the joint of the leg ; the posterior six 

 also furnished with a fine transverse sulcus, running from 

 side to side immediately behind the terminations of the three 

 longitudinal sulci ; that part of each tergite which is con- 

 cealed by the one immediately following it is defined by a 

 deep, transverse, arched groove, the twenty-first marked in 

 its anterior half by a fine transverse sulcus ; the posterior 

 sternites thickly punctured and hairy. 



A 7ial somite. — Tergite with raised lateral margins and con- 

 vexly produced posterior border, not sulcate ; pleurce, except 

 the superior portion and the process, furnished with many 

 conspicuous, close-set, circular pores, the process smooth, 

 long, slender, and tipped with a simple spine ; posterior 

 border hairy, inner edge of the posterior border chitinous and 

 serrate ; sternite densely porous and hairy, wider in front 

 than behind, its posterior border straight ; legs long, the 

 femur, patella, and tibia subequal in length, femur thickly 

 hairy without and within, triangular in section, its upper 

 surface posteriorly notched and grooved, its upper inner edge 

 furnished with a row of spinules, its lower surface armed 

 mesially with six large spines, the three anterior of which are 

 smaller and close-set and the three posterior widely separated ; 

 patella somewhat sparsely hairy except below in front, armed 

 beneath with two widely separated spines; tibia sparsely 

 hairy, unarmed; tarso-raetatarsus longer than the femur, 

 patella, and tibia taken together, the proximal segment about 

 one third the length of the tibia, the antenniform portion 

 indistinctly articulated to and considerably narrower than the 

 proximal portion, hirsute, the segments exceedingly nume- 

 rous, very minute, and indistinctly defined, divided into two 

 portions by a joint situated in its anterior half. 



Legs. — The twenty-second pair much larger than the 

 twenty-first, not spined, the tarso-nietatarsus distinctly 

 divided, the proximal segment being considerably longer than 

 the distal, the patella, tibia, and tarsus densely hirsute; 

 twenty-first pair of legs also unarmed, tarso-metatarsus 

 undivided and, like the tibia, hirsute; all the rest of the legs 

 with undivided sparsely hirsute tarso-metatarsus, an inferior 

 distal tarsal spur, and an inferior and an anterior distal tibial 

 spur ; in the first pair the anterior tibial spur is missing ; all 

 the claws bicalcarate. 



Length 34 millira., of anal leg 14. 



