208 AMERICAN SPIDERS AND THEIR SPINNINGWORK. 
scarcely contingent; SR placed well below and to the side of SF; the clypeus is high, more 
than the area of MF. Both rows are greatly procurved, the rear row the longer. 
Leas: Order, 1, 2, 4, 3; short, stout, yellow to orange yellow in color, covered with 
grayish yellow bristles abundantly, but apparently without spines; the palps are colored 
and armed as the legs; the mandibles conical, well compressed at the tips, yellowish brown, 
coyered with hairs at the base and inside. 
Aspomen: Carried in a plane almost at right angles to that of the corselet, is cylin- 
drical-ovate, broadened at the base, where there are two thick cones, whose summits are 
bifid; at the anterior bases of these cones and from the middle point of the abdominal front 
projects forward a smaller similar cone; the whole base of the abdomen is thus much 
roughened; the color is dull yellow, with a blackish band between the shoulder humps 
and an irregular semicircular patch of yellow upon the dorsal field; the whole surface is 
thickly covered with gray hairs; the spinnerets are distal; the venter a brownish band ; 
the epigynum (Fig. 6a) has a short bowllike scapus extending from the atriolum between 
the portulee. 
DisrrisuTion: Florida. (Marx Collection.) Cambridge describes the species from Panama, 
and it will probably be found along the entire Gulf Coast of the United States. 
Genus GEA, C. Kocn, 1843. 
In Gea the base of the head is flattened and marked by slight tubercles on either side 
of the median line. The caput is depressed at the base, elevated at the face. The 
sternum is cordate, about as wide at the base as long, with sternal cones. The labium 
is subtriangular; the maxillz are gibbous, somewhat longer than wide. The space between 
the midfront and sidefront eyes is but little, if any, greater than that between the mid- 
front; the space between the midrear and the siderear eyes, on the contrary, is much 
greater than between the midrear eyes. The front row is slightly procurved, almost 
aligned; the rear row, which is considerably longer, is very much procurved. The clypeus 
is moderately high. The legs are, in order of length, 1, 2, 4, 3; stout, and well provided 
with bristles and spines; the mandibles are rather long, somewhat conical, slightly retreat- 
ing backwards. The abdomen is a long oval, truncate at the base, but little arched upon 
the dorsum, which is marked by prominent shoulder humps and smaller tubercles. The 
spinnerets are distal; the skin soft and with metallic white or silvery lustre. 
No. 62. Gea heptagon (Hen7z). Plate XII, Figs. 8, 8a-d. 
1850. petra heptagon, Hentz .... . J. B. S., vi, p. 20; Sp. U. S., p. 122, xiv., 4, 5, 6; 
XVili., 52, 72. 
1890. Gea heptagon, Marx ...... Catalogue, p. 541. 
1892. Gea heptagon, Knyseruina. . . . Spinn, Amerik., Epeir., p. 76, iii., 58. 
Femate: Total length, 5 mm.; cephalothorax, 2 mm. long, 1.75 mm. wide; abdomen, 
3.5 mm. long, 3 mm. wide. General colors for the fore part of the body-are dark brown, 
with yellowish and blackish, the abdomen being dark, with silvery marks. I have no 
mature male, but an immature one from Georgia, nearly full grown, closely resembles the 
female in size and markings. 
CrrnatorHorax: Oval, well rounded at the margin; fosse a longitudinal depression ; 
corselet grooves and cephalic suture distinct; color brown, with a light margin of yellow, 
and yellow flecks along the corselet grooves; base of the head flattened and marked by 
very slight tubercles on either side of the median line, the color yellow, with brown 
patches on the sides and towards the vertex; the caput is depressed at the base, and 
elevated at the face. Sternum (Fig. 8c) cordate, nearly as wide at the base as long, with 
sternal cones; color brown on the edges, with a broad median band of yellow, with lateral 
branches to the sternal cones; slightly pubescent; lip subtriangular, yellowish; maxille 
