1953] 
Chamberlin — Oregon Chilopods 
39 
and numerous, present over entire surface. Anal legs in- 
flated in the male, the last article conically tapered. Pairs 
of legs, 73. 
Length of male holotype, 41 mm. 
Localities. — Oregon : Marion Co., Silver Creek Falls, 
male holotype taken by V. Roth on May 12, 1951. Montana: 
St. Regis, female allotype taken Sept. 23, 1950, also by 
Roth. 
Geophilidae 
Brachygeophilus tampophor new species 
Body and legs yellow throughout. 
Head a little longer than broad; sides over middle of 
length gently convex, more strongly rounding in at ends, 
the caudal margin straight; overlapping the basal plate. 
Claws of the prehensors when closed reaching distal 
end of first antennal article ; armed at base with a distinct 
acute tooth ; the other articles and the prosternum unarmed. 
Prosternum without sclerotic or chitinous lines. 
No clypeal areas. Clypeus with three pairs of submedian 
setae, of which the setae of the anterior pair are farther 
apart than those of the median, and those of the median 
pair than the most caudal. Median piece of clypeus bearing 
typically 7 long conical teeth. 
Spiracles all circular. Last ventral plate moderately 
wide. Coxal pores 5 on each side, the two innermost of 
which may be partly covered by the ventral plate. Anal 
pores not detected. Pairs of legs 39 except in one specimen 
in which there are 47 pairs. 
Length, 15 to 20 mm. 
Locality. — Oregon : Tombstone Prairie, Santiam Pass. 
Seven specimens taken Aug. 13, 1949, by V. Roth. 
This form differs from other western American species, 
excepting B. anonyx, in having the claw of the prehensors 
armed at base. From B, anonyx it differs in having the 
anal legs armed with claws as well as in the smaller num- 
ber of legs. 
