1875. ] CALEDONIA, MADAGASCAR, AND REUNION. 143 
Patria hujus speciei America meridionalis (Curacao, Aruba, Bo- 
naire, et cet.). Locum, ubi inventus fuerit mas supra descriptus, 
iguoro, 
Respecting the habits and supposed venomousness of this Spider, 
conf. Ozanam, and especially Van Hasselt, locis cit. 
Heteropopa? viripis (Vins.). 
1863. Olios viridis, Vins. Aran. de la Réun. ceé¢. p. 103, pl. xi. 
fig. 2. 
“OF this species only one female example (from Madagascar) was 
received ; it appears to be not fully adult, which may account for a 
few differences between Vinson’s description and what I have observed. 
The beautiful pale-green colour of living specimens is, as has been 
remarked by Dr. Vinson, totally lost when the animal is placed in 
spirit of wine ; it then becomes of a dull brownish yellow, with the 
slightly incrassated tarsal joint of the palpi brownish black, only a 
little paler at the base and apex. The cephalothorax is 4 millims. 
long and 4 millims. broad ; it is tolerably high and rather convex 
above, being highest just behind the base of the second pair of legs, 
sloping gradually and slightly towards the eyes; the hind slope is 
shorter and more abrupt. The cephalic grooves are faint ; the hind 
slope has a longitudinal, rather strong, central groove, about as long 
as the mandibles. The height of the clypeus nearly equals the dia- 
meter of the fore central eyes. The eye-series are almost perfectly 
parallel, the anterior nearly straight, very little curved forwards ; 
the posterior series, seen from above, is straight and longer than the 
anterior ; the fore lateral eyes are evidently larger, the hind centrals 
smaller than the other eyes. The area occupied by the central eyes 
is somewhat larger behind than in front, scarcely shorter than broad 
behind. The anterior central eyes are separated by an interval about 
as great as the diameter of an eye, and a little greater than the 
interval which separates them from the anterior laterals. The eyes 
of the posterior row are equally distant from each other, their interval 
being about twice as great as the diameter of the posterior lateral 
eyes. The lateral eyes are nearly equal ; their interval is about once 
and a half the diameter of an eye, and little or nothing smaller than 
the interval between the fore and hind centrals. The mandibles are 
13 millim. long (= patella of the fourth pair), double as long as 
broad, nearly as thick as the fore thighs, rather equally convex lon- 
itudinally, shining, reddish yellow, with long, rather scarce, pale 
faite ; the anterior margin of the claw-furrow is thickly ciliated, the 
posterior armed with about five smali teeth, of which the two inner 
are the longest. The maxillee are convex, scarcely half as long 
again as broad, somewhat narrowed towards the base, with both the 
exterior and interior side of the apex truncatedly rounded ; they are 
very slightly inclined towards the labium, which is not half as long 
as the maxillz, at least double as broad as long, with the apex 
broadly rounded. The first pair of legs are 19 millims. long (patella 
+ tibia 62, tibia 5), second pair 193, third pair 13, fourth pair 16 
millims, (their patella + tibia 54, tibia nearly 4 millims.). The legs 
