1947] 
Spiders from Puerto Rico 
189 
Agobardus blandus is probably related to Agobardus 
tetuani (Petr.) (Emathis), from Tetuan Mountain, near 
Jayuya and also from Rio Piedra, Puerto Rico. The lat- 
ter species has five cusps on the plate of the fang groove, 
and the cephalothorax has a large pale lateral spot each 
side. The abdominal dark marks also, differ. It is not 
impossible, that each mountain has a distinct species of 
this genus. 
Genus Habronattus F.O.P.-Cambridge 1901 
Habronattus pretiosus spec. nov. 
Figures 7, 9 
Male. Length, 3.6 mm., ceph. 2.0 mm. long, 1.5 mm. 
wide, abd. 1.6 mm. long, 1.1 mm. wide. 
Cephalothorax dark brown, ocular area thickly covered 
with white iridescent scales and longer dark bristles with 
the posterior margin between the dorsal eyes sharply de- 
fined by a dark band, curved lateral stripes of the white 
scales from the dorsal eyes to the posterior slope where 
they end abruptly, a broad marginal stripe of white scales 
ending abruptly above the second pair of legs, cephalic 
portion high, gradually rising to the thoracic groove when 
it falls gradually until about one-fifth from the posterior 
margin where it drops rapidly, widest posterior to the 
second pair of legs, thoracic groove short, in a semicir- 
cular depression, in a line between the dorsal eyes ; eyes, 
anterior row recurved, so that the upper margins form a 
straight line, a.m.e. separated by a line, and from a.l.e. by 
a little more, a.l.e. about one-lialf a diameter of a.m.e., 
eyes of second row very small and midway between the 
first and third rows, dorsal eyes slightly larger than a.l.e. ; 
quadrangle slightly wider behind than in front; clypeus 
about as wide as a diameter of a.m.e., thickly covered with 
white scales which join with the marginal stripe that ends 
at the second pair of legs; mandibles brown, small, ver- 
tical, fang groove very short, upper margin with three 
contiguous teeth, lower margin with one tooth; labium 
brown, as wide as long ; sternum oval, margins dark and 
center pale, I coxae separated by less than a diameter, IV 
coxae touching, the dark area with long white hairs; 
