CHAMBERLIN: THE ARACHNIDA. 181 
PHALANGIDA. 
GONOLEPTIDAE. 
GONOLEPTES ENOPLUS,! sp. nov. 
Plate 2; fig: 7-8; Plate 8, fig: 1-5. 
Main portion of carapace very dilute ferruginous, its caudal and 
caudolateral borders dusky but integument along edge of these parts 
white; area in front of cervical furrow deeply mottled with black; 
tergite of abdomen blackish with caudal border lighter. Legs black, 
but the distal articles of tarsus III conspicuously light, whitish, and 
the metatarsus and especially the tarsus of leg IV also somewhat 
lighter. Coxa IV dilute ferruginous black across distal end both 
below and above excepting the white line along the edge, its process 
also black excepting the paler tips. Coxae of legs I to III densely 
mottled with black excepting mesal ends which are paler. Sternites 
of abdomen_blackish excepting the paler caudal borders and the white 
integument adjoining the caudal edges. 
Body very wide toward caudal end of cephalothorax from where 
very strongly and abruptly narrowed cephalad to opposite bases of 
third legs, then more gently narrowing to anterior end; also con- 
spicuously narrowing caudad to end of abdomen; the greatest width 
of carapace equal to body length, (Plate 2, fig. 7). 
Carapace with only four complete transverse sulci, but the first of 
these with two branches on each side; first sulcus lying in a deeper 
cervical furrow, as usual angularly bent caudad at middle; second 
sulcus moderately angularly bent forward at middle; third sulcus 
with ends bent abruptly caudad and then running subparallel with 
body axis; fourth sulcus angularly bent forward at middle; all sulci 
connected by a median longitudinal suleus which is deepest between 
the first two. Eye-tubercle sharply set off and elevated, wider than 
long, the two cones near its caudal border not especially high. An- 
_ terior border of carapace conspicuously elevated as usual, the elevated 
rim much widest at middle. Lower frontal margin extended between 
the notches for mandibles and laterad of each in an acute spine-like 
process. Upper frontal margin at each lateral corner bearing several 
low teeth. Lateral border of carapace behind conspicuously elevated 
l évorXos, armed. 
