156 AMERICAN SPIDERS AND THEIR SPINNINGWORK. 
labium subtriangular, and, like the maxille, dark brown, with yellow tips; mandibles 
colored as the cephalothorax, dark towards the fang, at which point also they narrow on 
the inside ; clothed with white bristles. 
Eyes: Ocular quad, on a rounded prominence (Fig. 2b); MF decidedly larger than 
MR, separated by about 1.5 diameter; at the same distance from the margin of the clypeus ; 
length of the quad about equal to the front, the rear narrowest; MR separated by about 
their diameter. Side eyes upon tubercles, but hardly so pronounced relatively as the 
central prominence. SF the larger; the two scarcely contingent. Clypeus 1.5 diameter; 
MF high; the front row is slightly recurved, almost aligned, and shorter than the rear row, 
which is slightly procurved. 
Lras: 1, 2, 4, 3; moderately stout, heavily clothed with white bristles, and at points 
with yellowish curyed hairs, and provided with numerous strong white spines, set in dark 
and well elevated sockets; color, orange brown; the femora somewhat darker, or even 
blackish. Palps like the legs, heavily armed with spines and Jristles. One specimen of the 
same species has bright orange legs, without decided annuli, but the femora of first, second, 
and fourth legs marked with black bands, which cover three-fourths of the surface of the 
first two and one-half of the fourth pair; the femur of third leg is without the dark 
bands, but has a slight median annulus. 
Axspomen: Subtriangular in shape, longer than broad, arched upon the dorsum, but 
somewhat flattened upon the summit and rounding to the spinnerets, which are distal. It is 
heavily clothed with simple white bristles with brown pits, which are clustered more closely 
in a bushy tuft around the base; numerous smaller curved bristles of dark color are scat- 
tered over the entire dorsal surface; between these larger white ones and on the sides, 
mostly placed together, are golden yellow short curved bristles, which considerably modify 
the color. On one specimen, from San Domingo, the dorsum is bright yellow, with branch- 
ing longitudinal lines from the middle to the apex; the sides are marked with yellow.- On 
the specimen described the abdomen appears to have been a uniform yellow color, with a 
darker cordate band or folium occupying the greater part of the dorsum. The venter 
(2a, 2c) is a broad subtriangular patch, shaped like an old fashioned chapeau, of yellow or 
yellowish color, entirely girdled by an irregular ribbon of yellowish white; on the chapeau 
six dark or yellow spots are symmetrically arranged on either side of the long scapus. The 
venter, like the rest of the spider, is covered with numerous bristles and bristlelike hairs ; 
along the edge of the gills these stand thickly and are white. Spinnerets dark orange; on 
a specimen from Florida, bright orange. The epigynum is most remarkable for the length 
of the scapus (2c), which reaches over the entire venter to the base of the spinnerets ; it 
is narrow and. tapers nearly to a point, is without groove or spoon, but exceedingly rugose 
and with a light line of hairs along the median of the lower surface. The vulval porch is 
scarcely wider than the base of the scapus, and the portule are not exposed to view. In 
only one specimen (Florida) is this organ preserved intact, in two others it is broken off. 
For this reason, in the description of this spider, as first given in the Proceedings of the 
Academy of Natural Sciences of Philadelphia, I erred concerning the form of the epigynum 
by describing the species from examples from which the long scapus had been broken off. 
The fourth specimen, which I subsequently found, was in perfect condition, and thus permits 
me to correct this error. 
Disrrisurion: I have three specimens in my possession, all females; one from Florida 
(Fig. 2); one from San Domingo, collected by the late William H. Gabb; one from Swan 
Island, Carribean Sea, from Mr. C. H. Townsend; a fourth from the latter locality was sent 
by me to Dr. T. Thorell. From this showing the species would appear to be limited to the 
Gulf States and the tropical islands along the coast. It will probably be found widely dis- 
tributed throughout the northern parts of South America. In general form it resembles closely 
E. rayilla and E. bivariolata, but lacks the circular blisterlike abdominal markings which 
characterize E. bivariolata. The female specimen marked in the Marx collections E. ravilla, 
and so recognized by Count Keyserling, lacks about one moult of maturity, and the epigy- 
num (Plate V., Fig. 7a) is so different in length and structure from that of E. balaustina as 
drawn (Plate IV., Fig. 2c), that one doubts whether a final moult could overcome the differ- 
