38 
GEOPHILOIDEA. 
pores nearly in the middle of the sterna ; pleurae of last segment mod- 
erately enlarged, pilose, with the two large poriferous cavities partially 
concealed under the last sternum, which is hairy and about twice as 
long as broad ; pairs of legs 49-55 ; length 25-42 mm., width 1.5-2. 5 mm. 
The most common geophiloid in Liberian forests. A single specimen 
from Togo with 55 legs lacks the last pair and is in poor condition ; it 
may belong to this species. 
6. Ctenophilus paurodus, sp. 71 . Labrum with about 15 teeth (both Libe- 
rian species have about 30); claw of maxillary palpus very large, the 
fringe of spines very long ; prosternal teeth distinct, very broad ; coxae 
of prehensors without teeth ; the distal interior corner rounded ; ventral 
pores beginning on the second segment and extending about to the 
middle segments ; last sternum broad, the posterior margin notched in 
the middle ; two pairs of large pleural pores entirely concealed ; anal 
legs at apex with two slender spines as in Ct. africa 7 ius. Two speci- 
mens from Bismarckburg, Togo, collected by Buettner are in the Berlin 
Museum, a male with 43 legs and a female with 45 ; length of former 
about 14 mm. 
7. Ctenophilus euentulus (Porat) ; from Kamerun, evidently belongs in the 
present genus ; it has 51 pairs of legs. 
8. Ctenophilus simplex sp . 71 . Differs from Ct. africanus in having a single 
process from the basal joint of the labial palpus, in the narrower and 
longer teeth of the median part of the labrum, the somewhat longer 
cephalic lamina and prehensors. Males of Ct. africaTins have 49-53 
legs, while a male of simplex has 63 legs, a female 65. This species ap- 
pears to be extremely rare, only two specimens appearing in my collec- 
tion, while toward a hundred of africaTius were found. 
9. Schizot.«;nia prognatha Cook. Body whitish, the head brown. Antennae 
with last joint exceeding the two preceding taken together ; cephalic lam- 
ina longer than broad (ii;8), somewhat broader anteriorly than posterior- 
ly ; basal lamina more than twice as broad as long (3:7), largely concealed 
by the cephalic and first scutum ; prehensors much surpassing the 
frontal margin, their sternum of nearly equal length and width, nearly 
twice as long as the coxa ; coxa obtusely bidentate ; pleurae of last seg- 
ment somewhat enlarged, with a few large and small pores concealed 
under the ultimate sternum which is broader than long (5:4); anal legs 
with a few very long hairs, the claw with several hairs or spines; pairs 
of legs 41-43 ; length 9 mm. ; width .5 mm. ; rare in Liberia. A speci- 
men in the Berlin Museum lacks antennae and anal legs, but from the 
remnant of its characters seems referable to this species. It has 43 legs. 
10. Schizot/Enia quadrisulcata (Porat) from Kamerun has 45 legs and is 
10 mm. long. It differs from 3 ". progyiatha at least in the possession of 
anal pores and in the unarmed anal legs. 
11. ScHizoT/ENiA unguiculata (Porat); Kamerun. Prehensorial sternum an- 
teriorly bidenticulate, the coxa with a large fuscous tooth ; pleural pores 
4-6, concealed ; anal pores wanting ; anal legs long, 6-jointed, the basal 
joints with short and long setas, the distal with a few long bristles ; pairs 
of legs 49. 
