310 ARANEIDEA. 
again widening along the inner margin, evenly rounded on the outer, or upper, margin, terminating in a 
broad hook, its point directed downward. The basal lobe is long and conical, with a second small conical 
projection at its base on the outer side. 
Vulva of female consisting of a pair of large, convex, adjacent lobes, broader in front, narrower behind, not quite 
reaching the genital rima, exhibiting on their outer margin a long, sinuous, black mark, and often another 
beneath, marking the convolutions of the oviduct. 
Hab. Panama, Bugaba (Champion). 
TINUS, gen. nov. 
Type T. nigrinus, sp. n.(¢). Central America. 
Anterior row of eyes straight or slightly procurved; centrals larger, barely half a diameter apart, almost 
in contact with the laterals; posterior centrals less than one diameter apart, further from the laterals. 
Clypeus almost double the size of an anterior central eye. Both margins of the fang-groove tridentate, 
the teeth on the lower margin being equal and equidistant. Tibie i. and ii. with 2—2—2 spines beneath 
and a pair of small apical spines, besides lateral spines on both sides. Protarsi i. and ii. with 2—2—2 
spines beneath, besides laterals ; protarsi of all four pairs of legs with a single small apical spine beneath. 
Tarsi not flexible. Legs 4, 2, 1, 3. 
The species known to me may be recognized as follows :— 
Males. 
a. Tibia of palpus not much longer than the patella; tibial spur not bibranchiate ; 
spur broad, pointed, concave, with a small recurving barb on the upper 
margin. Outer lobe of bulb much narrower, blunt-pointed at the apex. 
Central lobe of bulb consisting of five or six pale discs oe ee 
b. Tibia of palpus three or four times longer than the patella; tibial spur bi- 
branchiate ; upper spur slender, curving forward, lower spur without the 
recurving barb. Outer lobe of bulb much broader, rounded-dilate at the 
apex. Central lobe of bulb consisting of three or four pale discs 
nigrinus, sp. 0. 
- . tibialis, sp. n. 
Females. 
a. The two convex vulval lobes divided anteriorly by a broad deep circular cavity ; 
central tongue-like process larger, overhanging the cavity, connected with a 
sinuous, pale, basal piece lying on the floor of the cavity . 
. tibialis. 
6. The two convex vulval lobes not divided anteriorly by a circular cavity. 
1. Size much larger: length 15 millim. Central tongue of the vulva elongate, 
concave above, pedunculate . . nigrinus. 
2. Size much smaller: length 7 millim. Central tongue of the vulva repre- 
sented by a small, black, convex, transverse piece, not pedunculate . minutus, sp. n. 
1. Tinus nigrinus, sp.n. (Tab. XXX. fieg. 8, 8a, b, ¢; 9, 9 .) 
Type d, gynetype 2, in coll. Godman & Salvin. Total length, ¢ 11, 2 15 millim. 
dg. Legs unicolorous yellow. Carapace yellow-brown, with a broad, darker, central band, its margins scalloped, 
having a very narrow, central, yellow stripe. Mandibles red-brown, suffused with black in front, basally. 
Abdominal pattern obliterate. 
©. Legs yellow-brown, femora and other segments more or less annulate with black. Carapace as in the male. 
Abdomen yellow, with a broad, black, central, dorsal band, shghtly emarginate on each side before the 
