184 RECORDS OF THE AUSTRALIAN MTSKUM. 



stalk. Tibia (T.) in a line with tlie femur (Fetn.J, nearly 

 parallelsided, tipped with a sub-equilateral triangular piece, 

 the length of which is about half the length of the tibial stem. 

 Posterior basal plate (r. 2.) angular. Tracheal stalks slender, 

 crooked. 



Posterior guno|)ods of the usual form; distal joint ending in 

 two flagelliform processes, of which the outer is not quite 

 twice as long as the inner. 



One male and one female fi'oni New Guinea. 



DiNEMATOCRlCUS DISJUNCTUS, "p. HOC. 



(Plate xvii., figs. 53-57.) 



^ mat. : length 57 m/m ; diameter 5 mm : 54 segments ; 



two segments apodous ; 97 pair of legs. 



Colour dull ochraceous with a slight olive shade ; posterior 

 margin of segments more chestnut ; the line of pores on the 

 last fourteen segments and the aual valves darkened. Head 

 black. Legs chestnut. 



Head smooth (or with tiny irregular wrinkles) : four la bra 1 

 dimples ; median sulcus distinct on the upper lip, very Aveak 

 backwards, almost obsolete between the antennee. Distance 

 between the eyes equal to twice the diameter of an eye. Ocelli 

 flattened, fairly distinct in the middle of the eye. but scarcely 

 recognizable along the borders, numbering forty-five to forty- 

 seven, ai-ranged in irregular rows (l-f-5 + 6-(-7-|-3-{-7 + 5 + 5 

 + 6 or 1+3+5+5 + 6+7 + 7 + 7 + 6). 



Antennal fossfe shallow. The distance between theantennal 

 sockets equal to the length of the four proximal joints. 

 Antenute short, not reaching the posterior margin of the first 

 tergite. The four proximal joints are almost bare; the seta3 

 are I'are on the fifth and moi-e numerous on the last two joints. 

 Foi.li' sensory cones. Micrometrical measurements of the 

 ioints: — 1st joint 0.512 m/ni ; "ind, 0.608 m m; 3rd, 0.544 m/m ; 

 4th, 0.512 m/m ; 5tli, 0.480 mm; 6th, 0.416 mm; 7th and 

 8th, 0.096 m/m ; total length, 3.168 m/m. Diameter of 2nd 

 joint 0.496 m m ; of 6th. 0.416 m ni. 



