OAMBALOID MILLIPEDS — ^LOOMIS 59 



ENDERE DISORA, new species 

 FlGUKE 18 



A single female specimen collected in an ant nest at Sunnyside 

 Mine, near Seneca, Plumas County, Calif., December 19, 1922, by 

 H. S. Barber. Type : U.S.N.M. no. 1312. 



Description. — Body 18 mm long and 1 mm broad; slightlj^ flat- 

 tened ; number of segments, 46. Color of body in alcohol light yellow 

 throughout, indicating that it probably was nearly white in life. 



Head smooth and shining; vertex unimpressed; antennae widely 

 separated, the distance between them nearly equal the length of one 

 antenna; antennae rising from beneath the lateral margin of the 

 head, the sockets and m-ost of the first joints hidden from above; 

 joints 1 and 3 subequal in length, shorter than the subequal joints 

 4 and 5; joint 2 longest, a third longer than joint 6; joint 7 very 

 short, scarcely exposed; joints 4, 5, and 6 of nearly equal diameter; 

 mandibulary stipes obscured from above by the sides of the head. 



Segment 1 smooth and shining; anterior margin straight and 

 thickened; posterior margin straight across the median part but 

 bending caudad some distance above the hind angles, which are 

 somewhat produced backward. 



From segment 5 to the caudal end of the body the segments are 

 strongly constricted at middle; anterior division of each segment 

 moderately convex, v/ith a series of very shallow, indistinct, oblong 

 channels behind, the channels separated by very fine raised lines 

 slightly beaded along their crests ; in front of the channels the sur- 

 face is marked with distinct honej^comb reticulations. Posterior sub- 

 segments more elevated, exceedingly convex, without distinct crests 

 but with a broad, tumid swelling on either side of the median line, 

 the swelling gradually raised from in front to the middle; dorsal 

 surface with smaller and less conspicuous reticulations than the an- 

 terior subsegment. Pores beginning on segment 5, borne on the 

 anterior slope of a lateral prominence similar to that on each side 

 of the dorsum. Sides longitudinally striate below the pores, es- 

 pecially on the anterior segments. Body narrowing rapidly back- 

 ward at the last three segments. 



Antepenultimate segment slightly longer and a little more convex 

 than the next segment but not so convex as the one before; dorsal 

 elevations not evident, and the pore not on a prominence as on the 

 foregoing segments. 



Last segment a little longer than the two preceding segments com- 

 bined, the apex strongly rounded behind, the setae lost. Preanal 

 scale elliptic and relatively long, being two-fifths as long as broad; 

 the processes that project from under the margin of the last segment 

 and cover the lateral angles of the scale are large and conspicuous. 



