No. 1810. DESCRIPTIONS OF NEW MILLIPEDS—GOOK. 161 



Antennas short, subclavate, joint 2 distinctly the longest, joint 1 

 next, joints 3-5 subequal, slightly exceeded by 6, about half as long 

 as joint 2. Antennas accommodated by a lateral depression of the 

 head and mandibulary stipe and partly covered by the wide anterior 

 corner of the first segment. Olfactory cones 4. 



Eyes of less than 20 rather prominent ocelli arranged in five rows. 



First segment very broad, not emarginate below the eyes and with 

 broad anterior and posterior lateral angles, the latter more rounded, 

 the former somewhat produced and with a very broad raised margin. 

 Second segment not produced below the first, but crossed by an 

 obliquely longitudinal crest parallel with the lower edge of the first 

 segment. 



Segments of middle of body with no distinct constriction, the 

 hindbelt scarcely more convex than the midbelt. Anterior suture 

 usually distinct, the posterior often perceptible as a fine superficial 

 striation; median suture often marked by a distinct groove of the 

 hindbelt. Forebelt and covered parts of midbelt with very fine 

 indistinct irregular striations along the anterior margin, passing into 

 a more distinct, very fine reticulation. Exposed parts of midbelt 

 beset with deep, coarse punctations, irregular in size and arrange- 

 ment. Hindbelt nearly smooth, with a few minute punctations 

 and fine longitudinal strias. The more distinct lateral and ventral 

 striations are confined to the hindbelt. They begin well below the 

 pores on anterior segments, but on posterior segments come up nearly 

 to the pores. 



Rcpugnatorial pores, with slightly raised margins set in distinct 

 depressions, slightly below the middle of the segment, on or in front 

 of the posterior suture. Lateral suture not indicated on the midbelt, 

 but marked by a distinct straight groove crossing the hindbelt and 

 sloping slightly upward from the pore, instead of downward like 

 the other lateral striations. 



Supplementary margin short, with fine longitudinal striations; 

 minutely pectinate with extremely fine-pointed teeth, visible with 

 a quarter-inch objective. 



Sterna quadrate, less than twice as broad as long; the lateral 

 margins parallel, the anterior distinctly convex; surface with fine 

 transverse striations, somewhat irregular and broken. Pleural 

 sutures indistinct, indicated by interruption of the surface reticu- 

 lation of the midbelt. 



Legs of anterior segments of males not crassate, the claws not 

 enlarged. Basal joints rather prominent below, but not distinctly 

 produced. 



Posterior segments somewhat abruptly narrowed and shortened, 

 especially the two penultimate. Last segment with a thickened-, 

 80796°— Proc.N.M.vol.40— 11— -11 



