170 Psyche [Sept.-Dee. 
segments slightly darker; narrow anterior margin of the first 
segment from behind the eyes across its middle bright terra- 
cotta, as also are the apex of the last segment and adjacent 
margin, margins of anal valves and the apex and free margins 
of the preanal scale; eyes black; antennae and legs dark horn 
brown. 
Head with ocelli in five series paralleling the antennal socket 
— 6, 8, 9, 8, 7 ; clypeus having six setigerous fovea on each 
side; cardo of mandibles deeply concaved to receive the an- 
tennae, its lower edge high, forming an acute crest, lower an- 
terior corner produced forward into an acute lobe. 
Anterior margin of first segment slightly produced forward 
for a short distance on each side just below the eye; lower 
limits narrowly rounded. Second segment with downward pro- 
jection narrow. Surface of body finely and rather sparsely 
punctate, the punctae slightly more numerous on the hindbelt. 
Gonopods as shown in figure 2, a and b. 
Seventh segment long at the middle ventrally, not in the least 
elevated, completely hiding the gonopods within the body. 
Coxae of legs 3, 4, and 5 produced into moderately conspicu- 
ous simple conic lobes; coxae of legs 6 and 7 with smaller lobes. 
RHINOCRICIDM 
Rhinocricus potosianus Chamberlin 
M-1789, south of Mante, Mex., August 6, 1942. 
XYSTODESMID& 
Aporiaria deturkiana Causey 
M-1772 and M-1806, Gatlinburg, Tenn., July 7 and 8, 1943; 
M-1771 and M-1785, Smoky Mts., Tenn., July 8, 1943. 
Zinaria cala Chamberlin 
M-1778, San Velasco Hammock, Gainesville, Fla., July 24, 
1942. 
Cheiropus gen. nov. 
Diagnosis: Related to the group of millipeds placed by Cham- 
berlin under Zinaria , but with the outer arm of each gonopod 
relatively stouter, the inner division of its apex expanded and 
much larger than the outer division. 
Description: Body large, with the dorsum moderately convex 
and with overlapping lateral carinae. Gonopods relatively small 
