1940] Chilopods from Panama 71 
PACHYMERINIM] 
Polycricus fossor, sp. nov. 
Color, pale yellow throughout. 
Spiracles circular, the first much larger than the second 
which is intermediate in size. 
Cephalic plate longer than wide, of nearly uniform width 
between the oblique corners ; caudal margin straight. 
Frontal suture not evident. Antennae short, filiform, uni- 
formly setose, the ultimate article equalling or a little ex- 
ceeding the two preceding taken together. Two very small, 
pale clypeal areas each bearing a single seta. Median di- 
vision of labrum bearing 5 stout teeth, the lateral pieces 
conspicuously pectinate. Lappets of first maxillae long and 
conspicuous. Coxae of second maxillae widely joined at 
middle ; no coxopleural sutures evident. 
Claws of prehensors when closed considerably surpassing 
the end of the first antennal joint. Claw at base and femur 
at distal end with a minute denticle, the other articles un- 
armed. Prosternum without chitinous lines. 
Ventral pores in a band across caudal border of sternites. 
Last ventral plate narrow. Coxopleural pores small and 
numerous as usual. 
Pairs of legs, 71. 
Length, about 15 mm. 
Locality. — Panama : Barro, Colorado. Aug. 6, 1938. One 
specimen. 
Differs from P. stolli (Pocock) in having two clypeal areas 
instead of one, in number of pairs of legs, etc. 
Chilenophilioe 
Barrophilus, gen. nov. 
A genus apparently most closely related to the African 
Polygonarea. With this genus it agrees in the structure of 
the second maxillae the coxae of which are connected only 
by a narrow membranous isthmus and are produced into a 
conspicuous conical process at the distomesal corner, the 
coxopleural suture running also as in that genus. Clypeal 
area present, single. Median dentate division of labrum 
