chamberlin: west ixdian chilopoda and diplopoda. 221 



ous dark points. Median region of first tergite strongly elevated, the 

 tubercles of the four principal rows exceptionally large; border turned 

 up along the free margin, deeply radially furrowed, lobes ten. Anal 

 tergite with margin divided into six lobes of which the middle one on 

 each side is largest; dorsum with the two submedian rows of large 

 tubercles represented by two continuous, straight edged ridges or 

 keels. First tergite with each margin three lobed; the other non- 

 poriferous keels with lateral margin two lobed, the single indentation 

 occurring caudad of the middle; in the poriferous keels the caudal 

 lobe is bifid, the lobes small, with the paler poriferous process pro- 

 jecting obliquely caudoectad between them at the caudolateral corner. 

 Pores on fifth, seventh, ninth, twelfth, thirteenth, fifteenth, and 

 sixteenth segments as usual. The caudal margin of each lateral keel 

 proper with a single lobe between its base and the caudolateral corner 

 lobe. 



Length, 6.5 mm.; width 1.1 + mm. 



170. Treseolobus granulofrons, sp. nov. 



Type.— M. C. Z. 4,477. Paratijpes.— M. C. Z. 4,478. Haiti: 

 Jacmel, December, 1912. W. M. Mann. 



This species is paler throughout than T. caraibiamts, yellow of a 

 weak reddish brown tinge above. The head in front and dorsally 

 above the level of the antennal sockets distinctly tuberculate, not 

 smooth as in the preceding species. The border of the first tergite 

 divided by radial sulci into ten primary lobes but the caudal one on 

 each side distinctly divided again, giving a total of twelve lobes. 

 The other tergites bearing only the two submedian rows of stronger 

 tubercles, the lateral one present on each side in T. caraihianiis not 

 developed in the present form. In the keels bearing pores the poste- 

 rior lateral lobe is not strongly reduced and retracted as in T. carai- 

 bianvs, the anterior of its di^•isions remaining as a prominent lateral 

 lobe. 



Length of type about 5 mm. 



171. Cynedesmus ornamentatus (Karsch). 

 Cryptodesmus ornamentatus Karsch, Mitth. Miinch. ent. ver., 1880, 4, p. 142. ' 

 Habitat — Cuba.^ 



