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DESCRIPTION OF GENERA AND SPECIES. 229 
are separated from SF by a little more than their area. The front row is slightly recurved ; 
the rear row strongly procurved. The clypeus margin is distant from MF by two or more 
diameters. : 
AspomEn: Elongated oyal, much longer than wide; thickest at the base, where it over- 
hangs the cephalothorax, narrowing at the apex to a caudal part. The spinnerets are 
placed a little short of the middle point of the venter (Fig. lla), which is drawn downward 
somewhat into a subtriangular shape. The color and pattern of the folium are indistinct in 
the specimen, but the latter appears to be a median ribbon of brown color extending quite 
from the base to the apex, with a narrow border of yellow on either side. Beyond this 
again upon the dorsum is a belt of brown, succeeded by a mottled band of yellow, and 
still lower upon the belly a broader band of blackish brown. The ventral pattern is a long 
brownish ribbon extending between the spinnerets and the epigynum, bordered by the 
yellow band already referred to, along the lower part of the sides. The caudal part 
beneath is mottled with yellow and brown, principally the latter. The specimen appears 
to be scarcely mature; the epigynum (Fig. 10b) is without scapus, and indicates a subtri- 
angular hood, widest in front, where it is apparently a little notched, with lateral slits on 
either side opening underneath the hooded atriolum. 
Disrrisurion: Key West, Florida. Specimen received from Dr. Marx. 
Genus SINGA, C. Kocnu, 18387. 
This genus is composed almost exclusively of small species, which in general appearance 
suggest certain species of the Retitelarise, with which the female especially may easily be 
confounded. It approximates Epeira in the form of the cephalothorax and mouth organs, 
and in the general stoutness and brevity of the legs. The cephalothorax is constructed 
as in Epeira, but the caput is more evidently arched, and not so much depressed toward the 
face; the surface is less pubescent, and is glossy. The siderear eyes are removed from the 
midrear usually by a space only a little greater than that which separates between the 
midrear and the midfront. The midfront eyes are separated from the sidefront by a space 
which is usually not much greater than, or nearly equal to, the space which separates the 
midfront eyes. Westring in his diagnosis states that in one species only (S. melanocephala) 
do the midrear eyes approximate one another more closely than the midfront eyes. But in 
American species considerable difference exists among the various species in the relation, 
size, and position of the midfront and midrear eyes. Indeed, the genus may easily be 
divided into several groups, according as the midrear are larger than or smaller than the 
midfront eyes, or are arranged in a line shorter or longer. The clypeus in some species, 
especially in the living examples of the male, is not much narrower than the space between 
the midfront and midrear eyes. The mandibles and maxille are shaped as in Epeira. 
The legs are stout, and rather sparingly armed with stubby spines. The palps of the 
’ male are short; the digital bulb almost wider than the femur of the front legs; and the 
cubital is usually clothed with the normal two exceedingly long robust bristles. Coxa-I in 
the male is usually without any apical denticulation, but there are some exceptions to this. 
The abdomen is obtusely oval or shortly eliptical; but little pubescent; the skin glossy. 
Its markings frequently consist of longitudinal fillets of cretaceous or yellowish black color. 
The snare is like that of Epeira in its general characteristics. 
No. 81. Singa Mollybyrne, new species. Plate XIX, Fig. 1. 
1889. Singa Mollybyrne, Marx in litt, . Catalogue, p. 549 (KryserLine in litt.). 
Frmarn: Total length, 5 mm.; abdomen, 3.5 mm. long, 3 mm. wide; cephalothorax, 
, 18 mm. long, 1.6 mm. wide. This species resembles certain forms of 8. variabilis, but is at 
once distinguished by the ocular quad being wider in front, instead of the reverse, as in 
8. variabilis. 
