Mijriapoda from Derhtjslilre. 



333 



III. Descriptions of the Two New Millipedes 



RECOUDED ABOVE, WITH NOTES. 



Bracliychceteuma qiiartum, sp. n. 



Dimensions approximately the same as tliose of tlie known 

 species. Ocelli present, well but irregularly pij^meiited, few 

 in number — three. The other external characters and the 

 mouth-parts agreeing with the type of the genus. Male 

 unknown. 



Female. — The female presents the usual sexual differences. 



The vultHv. — In the " cyphopodite" the chitinization, both 

 of the pilose lateral lobes (tig. 1, ex, in) and of the naked 

 posterior lobe {pi}, is well marked. The posterior lobe is 



Brachychaiteumn qnaiium, posterior view of tlie ri^lit vulva, ex, in, 

 exteruiil iuid iuternal lubes of the " cvpliopoclite " ; pi, posterior 

 lube. X 2(J0. H. K. B.-B. del. ' 



simple in .form, and is neither provided \Aith a marked 

 median elevation nor with lateral folds of chitin, though, as 

 usual, tl'.e chitin of the posterior lobe as a whole is stouter 

 than that of the rest of the organ. When viewed from 

 behind the di.stal limit of the ])osterior lobe is almost flat and 

 its lateral borders are simple, being convex in profile. From 

 the same point of view a strong band of chitin is seen to 

 arise from the external edge of the lobe at the height of its 

 convexity ; this baud passes transversely towards the internal 

 edge, and, losing its definition, hardly unites with it. A 



