Genera and Species of Millipedes. 437 



rior half of the body taking the form of smooth rounded teeth 

 or tubercles. 



Copulatori/ J\el (as in ^l,t,^ 11) much sliortcr and less curved 

 than in dulltensis, witli the inner terminal Hagellum angled 

 at the base and strongly curled. 



Measurements in ntillimetres. — Total length Go ; width of 

 fifth segment ll'O, of second 11. 



Loc. Borneo. 



HoPLURORHAcriis, gcn. nov. 



First tergite broadest in front of the middle, but the ante- 

 rior angles not produced. 



Dorsal surface of segments finely granular or coarsely 

 coriaceous ; the three rows of tubercles visible, the posterior 

 the largest ; margins of keels entire ; pores remote from the 

 margin. 



Caudal process broad, posteriorly strongly tridentate, the 

 lateral angles and the middle being strongly produced. 



Sterna from seventh segment armed with four long poste- 

 riorly or downwardly directed spines. 



Distal end of copulatory organ shorter than hairy basal 

 ramus, bent at right angles to it and trifid. 



Type H. Everettii. 



Differing from allied genera {Acanthodesmus &c.) in 

 having the lateral angles of the caudal process produced 

 and spiniform. 



IJoplurorhachis Everettii, sp. n. (Figg. 12, 12 a, p. 441.) 



Colour black or deep brown, the dark colour spreading 

 on to the keels at least as far as the pore ; the rest of the 

 keels and legs and antennae and the processes of the tail 

 flavous. 



Length of anfennce a little less than width of second 

 segment. 



Anterior end of body rapidly increasing in width poste- 

 riorly from the first to the fifth segments. 



Anterior border of keels {e. g. of twelfth segment) thick- 

 ened, shouldered basally, anterior angle rectangularly rounded ; 

 posterior border finely crenulate, the angle subacute, a trian- 

 gular prominence at the base ; pore separated from the lateral 

 margin by at least four diameters ; posterior border of this 

 keel on a line with the posterior border of the segment j tail 

 narrow, with prominent processes. 



Copulatory foot with straight basal ramus ; terminal portion 

 broad, giving off internally a wide short lamina, externally a 

 longer posteriorly projecting lamina, and bearing in addition 



