COBANUOS. 189 
Males. 
A. Mandibles elongate, divergent ; teeth of upper and under sides wide 
apart. Fang very long. Carapace without tufts of hair on the 
cephalic area. 
i. Fang with no tooth on the inner margin close to the base. 
a. The two teeth on the upper margin much wider apart. Femur of 
palpus clothed above with a dense tuft of white hairs. Patella 
and tibia i. annulated at their apex with black. Femur i. dark 
brown; protarsus i. brown, tarsus i. yellow. Legs 11. slightly 
annulated with brown; iii. and iv. yellow, slightly annulated with 
brown. Abdomen yellow with four dark spots, having between 
them three or more dark “~-shaped marks. Tarsus of palpus 
long and narrow, not broader at the base. Tibia of palpus at least 
one-third longer than the patella. Spur shorter and broader. . ewxtensus, Peckh. 
b. The two teeth on the upper margin much closer together. Femur 
of palpus without tuft of white hairs. Legs without annulations. 
Markings on abdomen and carapace obliterated. Tarsus of palpus 
broader at the base. Tibia of palpus not more than one-fourth 
longer than the patella. Spur more slender . . . . . . « wnicolor, sp.n. 
. Fang with a tooth near the base on the inner margin... . . mandibularis, Peckh. 
B. "“Mandibles not elongate or divergent, similar to those of the female ; ; 
fang short. Cephalic area with a pair of short triangular tufts of hair 
above (often obliterated). Femur of palpus without tufts of white hair 
above. Legs i. entirely brown, the others yellow, more or less annu- 
lated with pale brown. 
1. Abdomen yellow, with four dusky spots on the central posterior 
dorsal area. Paired teeth of mandibles situated opposite each other. 
Tibial spur of palpus shorter and slightly curved . . . . flavens, Peckh. 
2. Abdomen entirely dark olive-green above. Paired teeth of mandibles 
well separate. Tibial spur longer and straighter. . . . . . . subfuscus, sp. n. 
Females. 
Vulva consisting of a broad semicircular disc, divided into two symmetrical 
areas by a narrow, wedge-shaped, pale groove, wider behind, the rim 
of which curves round to the sides, then inwards towards the base, and 
suddenly downwards, at which point it is much blacker . . . . . flavens. 
Norr.—The legs and carapaces of these spiders are so worn that most of the hairs and scales have been 
obliterated. The femur, tibia, and protarsus i. are, however, evidently usually fringed with black hairs; the 
protarsus especially so, being also a little curved. C’. perditus is unknown to me. 
Peckham has suggested that C. flavens should form the type of a new genus based 
on the short mandibles. We have, however, an adult male example which cannot be 
separated from C. extensus, except that it has mandibles similar to those of the male 
of C. flavens (i.e. similar to those of the females of the genus). I suspect that these 
varieties of the male occur frequently, as they do in some other groups of the Salticide. 
