AHT.S, MILLIPEDS OF CENTRAL AMERICA — CHAMBERUN. 5 



2. PLATYDESMUS ANALIS Pocock. 



Platydesmus analis Pococic, Biol. Centr.-Amer., Diplop., 1903, p. 46, pi. 4, 

 figs. 3-Sg. 



Locality. — Guatemala :(? ) Guatemala city. 



3. PLATYDESMUS MARMOREUS Pocock. 



Platydes7nu8 marinoreus Pocock, Biol. Centr.-Amer., Diplop., 1903, pp. 48, 61, 

 fig. 3. 



Locality. — Guatemala : Cholhuitz, 



4. PLATYDESMUS PERPICTUS Pocock. 



Platydesmus perpictus Pocock, Biol. Centr.-Amer., Diplop., 1903, p. 47, pi. 5, 

 figs. 1-1/. 



Locality. — Guatemala : Senahu, Cholhuitz. 



5. PLATYDESMUS INTERRUPTUS. new species. 



Plate 1, figs. 1, 2. 



Dorsum in general brown. A black median longitudinal band 

 geminate with a median line which expands at intervals into quadrate 

 areas, of which there are four, each of these bounded on each side 

 by a quadrate black area about equal to itself in size. The surface 

 paler in a longitudinal stripe between each two black quadrate spots 

 and in an area laterad of each of the latter. Legs and ventral surface 

 pale, the antennae typically darkened distad. Body very broad, three 

 times longer than wide. Eyes present. First tergite produced for- 

 ward beyond the head, thus completely covering the latter from above ; 

 the anterior border acutely notched at the middle, as shown in plate 1, 

 figure 1- Of the two rows of tubercles on the tergites the anterior one 

 extends laterad nearly to ends of keels, the posterior row not so far. 

 Last tergite surpassed by keels of the preceding segment (pi. 1, fig. 2). 

 Number of segments, mostly between 40 and 50. Length, 15 mm. : 

 width, 5 mm. 



Localities. — Honduras: San Juan Pueblo (type locality), eighteen 

 specimens, and La Ceiba, one specimen (W. M. Mann). 



Suggesting the Guatemalan P. perpictus Pocock, but different 

 clearly in the color pattern, the greater width of the bodj'', the more 

 open median incision in the first tergite, etc. 



Type.— Cat. No. 812, U.S.N.M. 



6. PLATYDESMUS INTERRUPTUS SIMPLEX, new variety. 



Agreeing with the preceding form closely in general structure, but 

 differing in coloration. The dorsum has a sharply defined, narrow, 

 evenly continuous, median, longitudinal, dorsal black stripe, else- 



