no. 1831. NEW TROPICAL MILLIPEDS—COOK. 473 



EXPLANATION OF PLATE 60. 



Chatelainea pterodesmoides, new species. 



Fig. la. First four segments from above. 



lb. Head and first two segments from below, 



lc. A segment, posterior view, showing the position of the carinee. 



Id. Lateral carina, showing position of repugnatorial pore. 



le. Poriferous lobe of carina more magnified. 



1/. Supplementary margin from ventral part of segment, seen from the outside. 



lg. Supplementary margin from dorsal part of segment, seen from the inside. 



lh. Five distal joints of leg. 



li. Preanal scale with long setae. 



lj. Copulatory leg in situ, ventral view, showing rim of aperture. 



Ik. Copulatory legs, anterior view. 



1Z. Same, posterior view, 



lm. Same, mesial view. 



In. Last seven segments, dorsal view. 



(Jryptodesmus olfersii (Brandt). 



Fig. 2a. First three segments, dorsal view, drawn from type-specimen in the Berlin 

 Museum. 

 26. Carina of segment 5, with repugnatorial pore. 

 2c. Last three segments, dorsal view. 



