some South-American Aviculariidaj. 85 



¥. Carapace mucli lonper than femur of first or fourth 



leg and slightly exceeding their patella-ftibia . . emeraldus, 

 b. Stridulating-spines on maxilJa forming a convex cur- 

 vature, the middle of which is remote from the oral 

 fringe and nearer the coxal groove. 

 a^. Carapace as long as tibia +^ patella of first leg, 

 shorter than protarsus^- tarsus of first or second ; 

 patella -f-tibia+protarsus4- tarsus of first longer 



than those of fourth CamhridyiL 



b"^. Carapace as long as tibia+f patella of first leg, 

 longer than protarsus+ tarsus of first or second ; 

 patella + tibia -|-protarsus+ tarsus of first shorter 

 than those of fourth plantaris. 



EphebopKs, Simon, Poeoek, Ann, & Mag. Nat. Hist. (7) viii. p. 547 

 (1901). 



Ephebopus fossor^ sp. n, 



?. — Colour like that of E. murinus (= Santaremia Po- 

 cockii), but the longitudinal bands on the legs less conspicuous 

 and narrower, those on the anterior patella being separated 

 throughout their length ; furthermore the legs are ornamented 

 with distinct transverse bands on the distal ends of the patellse, 

 tibiaj, and protarsi. 



Carapace as long as patella + tibia or protarsus + tarsus of 

 fourth leg, slightly less than tibia + protarsus of first and than 

 patella + tibia + tarsus of palp ; eyes of anterior line subequal 

 and subequally spaced, the medians separated by a space 

 which is equal to about three fourths their diameter. 



Legs 4, 1, 2, 3j fourth exceeding first by about the length 

 of half its tarsus ; tibia of first with a pair of inferior apical 

 spines, of second with a single apical s])inc on inner side, of 

 third and fourth unspined; protarsus of first and second uii- 

 spined apically beneath, of third and fourth with a single pair 

 of apical spines. 



Labium flat. 



Measurements in millimetres. — Total length 33 ; carapace 

 14 ; palpus 23 ; first leg 37*5, second 35, third 'd'l, fourth 

 39 (all from base of femur). 



Loc. Rio Sapayo, N.W. Ecuador, 450 feet. 



The Amazonian form E. murinus {=-Focochii) may be 

 distinguished as follows from the new species here described : — 

 the legs have thicker longitudinal bands and scarcely deve- 

 loped transverse bands; the labium is convex; the eyes 

 compact, the anterior medians being barely a radius apart ; 

 the tibias of all the legs have a pair of inferior spines, the 

 protarsi of third and fourth have four or i\YQ apical spines 

 below. 



