DIPLOPODA. 
PLATE IV. 
Fig. 1. Platydesmus perpictus, sp. n.. x14: 1a, lateral view of first and second segments ; 
1 4, dorsal view of first and second segments; 1c, ventral view of head and first three 
segments ; 1d, ventral view of first eight segments of male, showing eight pairs of legs 
in front of copulatory organs (partially diagrammatic) ; 1 e, dorsal view of two segments 
of the mid-region of the body ; 1, ventral view of four segments in the mid-region of 
the body (same scale as 1c); 1g, posterior extremity of body (same scale as 1c and 1/f); 
1A, sternum and leg of segment in mid-region of body; 1%, legs of second pair in male 
(g-, genital papilla) ; 1, transverse section of segment (tg., tergum; &., keel; pi., pleural 
membrane ; s¢., sternum). 
. Platydesmus hirudo, sp. n., x1}: 2a, anterior view of head; 24, anterior extremity of 
body ; 2c, two segments of mid-region ; 2d, posterior extremity ; 2¢, copulatory organs 
of male with anterior leg of right side removed (partially diagrammatic). 
. Platydesmus anaiis, sp. n., X15: 3 a, anterior view of head; 3, dorsal view of head and 
first two segments; 3c, anterior extremity of body from above ; 3d, two segments of 
the mid-region from above ; 3 e, posterior extremity; 3,f, sternum and basal segments 
of leg of mid-region of body ; 34g, ventral view of four segments of mid-region. 
. Platydesmus triangulifer, sp. n., x14: 4a, head and first three segments from belw ; 
46, head and first two segments from above; 4c, anterior extremity from above ; 
4d, two segments of mid-region from above ; 4 e, posterior extremity from above. 
. Plaiydesmus lineatus, sp. n., x 14: 5 a, head and first two segments from above; 5 }, anterior 
extremity from above ; 5c, two segments of mid-region from above ; 5d, posterior 
ee 
Sy) 
ibe 
Or 
extremity; 5e, four segments of mid-region from below; 5, sternum and basal 
segments of leg from mid-region ; 5g, second leg of female. 
