319 



wider and longer than its prescutum , wider posteriorly than anteriorly. 

 Anal pleurce very much swollen, covered with minute pores, extend- 

 ing anteriorly and laterally as far forwards as the posterior margin 

 of the third somite from the end and constituting thereby the lateral 

 portions of the two posterior somites ; anal sternite very small , wider 

 than long; anal legs of moderate length, slender in 9- 



Stigmata appearing as vertical slits, large at the anterior end of 

 the body, small in the middle and at the posterior end; at the an- 

 terior end of the body with only two sclerites separating the tergites 

 from the stigmatiferous sclerites ; the number gradually increases from 

 before backwards and reaches as many as five if not six, then 

 diminishes towards the posterior end, so that the stigmatiferous 

 sclerite of the preanal somite is in contact with the tergite. 



The two species of the genus may be recognised as follows. 



Claw of maxillary feet long and overlapping the head-plate in front ; 

 anal somite with prescutum distinct from the tergite and the pleurse 

 extending as far forwards as the posterior margin of the fourth somite 

 from the end; 161 pairs of legs cumingii, Newp. 



Claw of maxillary feet shorter and not overlapping the head-plate 

 in front; anal somite with prescutum united with tergite and pleurae 

 extending only as far forwards as the posterior margin of the third 

 somite from the end; 131 pairs ot legs insularis, sp. n. 



Class SYMPHYLA. 

 Family SCOLOPENDRELLIDAE. 



Scolopendrella. 

 23. Scolopendrella Immaculata, Newp. 



Tr. Linn. Soc. XIX, p. 374, and all authors. 

 Sumatra: Singkarah, Mount Singalang. 

 Java: Tjibodas. 



I did not succeed in finding any characters to justify the view 

 that these oriental specimens of Scolopendrella are specifically distinct 

 from the Nearctic and Palasarctic form S. immaculata. 



Class DIPLOPODA. 

 Subclass Chilognatha. 

 I. Introductory Remarks. 

 It is impossible to speak too highly of the value of this section of 



