NO. 14 MILLIPEDS OF WEST INDIES AND GUIANA LOOMIS 61 



tubercles in each inner row, whereas on segments 3 and 4 there are 

 but two tubercles in any row, and on the segments following these 

 there are three tubercles in each row. One or two small granules are 

 present between each pair of rows of large tubercles. 



Second segment with the lateral margin of each keel 3-lobed and 

 over half again as long as the margin of the keels of segment 3 or 4. 

 Nonporiferous segments, from the third to the nineteenth inclusive, 

 with the outer margin of the keels weakly bilobed, the anterior lobe 

 usually the largest except on segments 3 and 4, where the lobes are 

 equal. Poriferous segments with two lobes in addition to the porif- 

 erous tubercle, which separates the two lobes and projects from near 

 the posterior corner of the keel, the posterior lobe small and more 

 nearly on the posterior margin of the keel than on the lateral margin. 

 Segments 13, 14, and 15 are shown in figure 30, b. Pores present on 

 segments 5, 7, 9, 10, 12, 13, 15, and 16. 



Nineteenth segment considerably longer than those preceding it, 

 completely concealing the last segment from above. Surface with the 

 large tubercles of the inner rows almost completely coalesced to form 

 two high ridges, in each of which the last tubercle is produced far 

 behind the posterior margin ; each outer row of tubercles reduced in 

 size but not coalesced, the last tubercle in each row projecting slightly 

 behind the margin ; between this tubercle and the lateral keel is a small 

 granule also projecting beyond the margin. Posterior corner of the 

 lateral keel on each side reaching about half way to the apex of the 

 produced median ridge. Ventral view of segments 18, 19, 20, anal 

 valves and scale are shown in figure 30, c. 



Last segment small and completely hidden from above by the pen- 

 ultimate segment ; posterior margin with three small setiferous lobes 

 on each side; under the apex there is a large setiferous cone almost 

 obscuring the two apical lobes. 



Anal valves lacking definitely raised margins ; median portion of 

 each valve somewhat depressed longitudinally, on each side of which 

 the surface is slightly convex. 



Preanal scale subtriangular, with the customary two setae. 



Sterna very narrowly separating the legs. 



Third segment of the females very short behind the second pair of 

 legs and slightly more elevated than the fourth segment but without 

 a separate, definitely delimited crest. 



DILOPHOPS BULLATUS, n. sp. 

 Plate 4, fig. 4 

 A single female (type) was collected from beneath a log an eighth 

 of a mile from the beach at Bayeux, Haiti, July 15, 1927, by H. F. 



