326 ON MYRIOPOBA PROM SIAM AND MALAYSIA. 



Body long and slender. 



Distance between the eyes greater than a diameter. 



Antennae extending beyond the first tergite. 



First tergite laterally but little narrowed, without striae, the 

 anterior angle obtusely rounded, the posterior rectangular. 



Tergites smooth and polished, the posterior portion elevated, 

 the strige never extending so high as the pore. 



Anal somite : caudal process apically upcurled, projecting con- 

 siderably beyond the valves, the margins of which are thick ; 

 sfernite not defined by a sulcus. 



Legs moderately long. 



Copulatory feet with the anterior lamina presenting the form 

 of a strong inwardly directed hook; the protrusible part termi- 

 nating in two processes, one of which is laminate and curled, 

 the other shorter, bears a strong tooth near its point of oiigin, 

 and is armed apically with four smaller teeth. 



.Number of somites (38. 



Length 170 mlllim., width 10 millim. 



Hah. A single male example from Mount Dulit, N.W. Borneo 

 (C. Hose). 



Spieosteeptus baluensis, sp. n. 



(S . So closely allied to the preceding that a detailed descrip- 

 tion is unnecessary. 



Colour as in S. dulitianus. Body more robust. The lateral 

 extension of the first tergite thinner, the posterior border lightly 

 emarginate above the posterior angle, the anterior angle a little 

 more obtuse. The posterior half of the tergites scarcely elevated. 

 The copulatory foot with its anterior lamina thinner than in 

 8. dulitianus, the extremity being much less strongly curved ; the 

 protrusible portion terminating in a curled laminiform sclerite, 

 and bearing four sharp spurs, three (two very long) at the base 

 of the lamina, and another halfway along the cylindrical basal 

 portion. 



Number of somites 67. Width 12-2 millim. 



Hah. A single male example from Mount Kina Balu, N.W. 

 Borneo (J! Whitehead), 



