DESCRIPTION OF GENERA AND SPECIES. 2538 
Femate; Total length, 25 mm.; abdomen, 17 mm. long, 7 mm. wide; cephalothorax, 
8 mm. long, 6 mm. wide. Koch’s Nephila clavipes (plate No. 34) appears to me to be iden- 
tical with a species found along our Gulf Coast, of which I have received several examples 
from Mr. C. H. Townsend, collected at Swan’s Island, Carribean Sea. There is, however, 
some discrepancy between the description and illustration of Koch, as Walckenaer has 
pointed out, Ins, Apt., II., page 99. No. 354, Koch describes as N. fasciculata Dr Grrr, and 
with head horns, which are certainly not represented in the figure marked for that species 
on the plate. On the contrary, No. 355 is drawn with head horns (apparently), although 
“"N. clayipes,” which is the title of that number, is described in the text as without such 
appendages, A specimen in Dr. Marx’s collection from Key West, Florida, resembles Koch’s 
Fig. 355, Plate CLII., and corresponds well to the description placed under “ Fig. 354,” 
pages 30, 31. Has there been here a transposition of the figures? In any case a new name 
must be given for the species numbered 354 (Plate CLIL.), since both the names N. clavipes 
and N. fasciculata are appropriated. The latter, indeed, may be a synonym of the former, 
but this is in doubt, and, in the absence of material for study, it is not possible for the writer, 
at least, to determine that point. The species has a close general likeness to N. Wilderi, 
from which it may commonly be distinguished by the presence of brushes or plumes on 
the tibix alone, instead of on both tibize and femora, as in Wilderi; by the absence of the 
strong sternal cone directly opposite the labium, which marks Wilderi; and by the venter 
haying a rather broader band of yellow instead of the brighter marginal triclinium on the 
yenter of Wilderi. 
CrpHALorHorax: A rounded oval, sharply truncated at the base, the fosse deep, the 
corselet grooves and cephalic suture strongly marked. The dorsum is somewhat flattened 
at the top, covered with silvery white pubescence, the ground color orange brown, with a 
yellow band at the margin and a broadened triangular patch upon the caput. The sternum 
is shield shaped, pointed at the apex, almost as wide as long, slightly elevated in the 
centre, and with rounded tubercles before the first coxee and the lip; scarcely marked 
tubercles or lumpy elevations are opposite the second and third coxe; color yellow, with 
streakings of brown; covered with pubescence. The labium is long, thickened from the 
base to the middle, and the tip a rounded triangle; maxille longer than wide, pyriform, 
and, like the lip, yellow in color, and coyered, but not excessively, with bristles and hairs. 
Lees: 1, 2, 4,3; not stout, but comparatively thin for such a large species. The spinal 
armature is scant and rather feeble, the terminal joints particularly, and heavily coated 
with yellow bristles. The apices of the tibial joints have clusters of bristles, forming a 
faintly developed brush, but not so prominent as in N. plumipes. The color is yellow, 
with orange tips at the joints, and the feet and metatarsi black or blackish brown. Palps 
colored as the legs; mandibles conical; a slight conical projection marks the outer edge of 
the base near the reticulation. Color dark brown and blackish. 
Eyxs; Ocular quad on a well rounded prominence, wider behind than in front, and 
longest at the sides. The eyes do not greatly differ in size, but MF are the larger; are 
separated by about two diameters; MR by 3 to 3.5 diameters; side eyes on well elevated 
tubercles, almost equal in size, SF slightly the larger, and not differing much from the size 
of MF. The distance between MF and SF is about 1.5 to 1.3 the alignment of MF; the 
clypeus is high, about the alignment of MF. The front row is recurved, the rear row 
procurved. 
Aspomen: Cylindrical, somewhat thicker at the base, which overhangs the cephalo- 
thorax, than at the apex, which slightly overhangs the spinnerets; color yellow; skin 
reticulated; dorsum thickly covered with whitish spots, the largest symmetrically arranged 
on either side of the median line; the others scattered over the dorsal field, which is 
limited at the margin on the sides by an interrupted line and on the base by a band of 
like color. A yellow band broken in the middle passes around the anterior part of 
the base; the sides are colored as the dorsum, and similarly marked by whitish spots. 
These and other portions of the abdomen are provided with silvery bristles, whose metallic 
lustre adds much to the beauty of the species. The venter is a yellow band with longitu- 
dinal stripes of lighter color, and whitish bands, with silvery pubescence at the sides, and 
