DESCRIPTION OF GENERA AND SPECIES. 201 
by shoulder humps, presents a triangular folium that covers the entire surface, being ordi- 
narily a bright yellow, with beautiful rose-colored or red reticulations. On some of the 
specimens a brownish line, with curved side branches, passes along the median; the front 
overhangs the cephalothorax, is rounded, brown, mottled with yellow, showing often rosy 
hues. The side (Fig. 6a) in some specimens is very beautiful, a reticulated yellow, with 
stripes of vermilion or lake. The dorsum terminates in a rounded cone, and just under- 
neath this on the apical wall is a second rounded tubercle, and beneath this a third, 
rather flattened; on either side of this median row are two similar rounded tubercles; the 
sides in some specimens are roughened or indented; the whole surface of the skin is 
glossy, and is covered rather scantily with long whitish yellow hairs. The venter is a 
blackish brown patch, which encompasses the spinnerets, which are black and much over- 
hung by the abdomen; the epigynum (Fig. 6c) has a long needlelike scapus, glossy brown 
in color, narrow at the base, pointed at the tip, which extends from the narrow atriolum 
entirely to the spinnerets; the portule show on either side as compressed openings into 
the genital cleft. 
Mare: 6 mm. long; cephalothorax yellowish brown, face much projecting beyond the 
mandibles, which are decidedly weaker than in the female, retreating backward and widely 
divergent at the tips; legs yellow, with lighter brown annuli; provided with numerous long 
yellow spines, especially formidable underneath femora-I, I; tibia-II is curved, and pro- 
vided at the apex with a most remarkable series of clasping spines, one of which is a 
strong, long spur, thick at the base, which is covered with curved bristles, pointed at the 
tip into two dark pointed spines, one longer than the other; beyond this spur on either 
side is a low process which contains two shortened curyed brown spines; the apex itself is 
much thickened, and has one strong curved brown spine; besides these are a number of 
long ‘acute brownish spines. The abdomen is triangular ovate, and has the characteristic 
markings and tubercles of the female, but less decidedly. The palps (Fig. 7a) are brownish 
yellow in color; the digit an elongated oval, the cubital joint much curyed, longer than the 
radial joint, which is quite short. 
Disrrisution: I haye collected this species in the neighborhood of Philadelphia, where, 
however, it is not common; in New Jersey and Ohio; and have it from as far west as the 
American Plains. Abbot took it in Georgia, Hentz in Alabama and North Carolina. Marx 
reports it from Florida (Cresson City), Utah (Spring Lake), California (Occidental). The 
species is thus widely distributed over the United States. I haye specimens collected by 
the late Mr. W. H. Gabb from San Domingo varying in but slight particulars from those 
above described. The species is doubtless well distributed throughout the West Indies; 
and the States of Central and South America contain species closely resembling it. 
No. 57. Verrucosa unistriata, new species. Plate V, Figs. 8, 3a-c. 
Frmate: Body length, 11 mm.; abdomen, 9 mm. iong, 7 mm. wide; cephalothorax, 
5 mm, long, 5 mm. wide. The general colors are, for the fore part of the body yellow, 
with orange or rose tints on the legs, and for the abdomen grayish yellow, with a prom- 
inent median band of a bright yellow or yellowish white. r 
CrerpHaLorHorAx: A rounded oval, the corselet margin almost circular; color yellowish 
brown, with a dark or median band of brown, which passes through two large patches of 
brown, apparently on a depressed spot in the centre of the caput. The head more than 
half as wide as the corselet, sloping gradually to the face; moderately pubescent, with 
long, gray, bristlelike hairs scattered over the surface; corselet grooves distinct; cephalic 
suture well marked. Sternum little longer than wide, attenuated at the apex, raised in the 
middle, with prominent sternal cones, especially before coxve-III and in front of the 
labium; color dark brown, with a yellowish brown median patch. Labium obtusely tri- 
angular, thickened at the base, more than half as long as the maxille; maxille longer 
than broad, subtriangular at the tip, and tipped with yellowish white. 
Eyes: Ocular quad elevated, a little wider in front than rear, the length greater than 
width; MF separated about 1.5 to 2 diameters; MR smaller than MF, and separated one 
