2 20 ARANEIDEA. 
PENSACOLA. 
Pensacola, Peckham, Proc. Nat. Hist. Soc. Wisc. 1885, p. 83 (Dec.). 
Hamillus, Peckham, Occas. Papers Nat. Hist. Soc. Wise. iii. 1, p. 70 (April 1896). 
Type of Pensacola, P. signata, Peckh., Guatemala ; of Hamillus, H. sylvestris, Peckh., Guatemala. 
Characters drawn from the adult male of the type-species of Hamillus :—Cephalic quadrangle much broader 
than long, slightly wider in front. Dorsal eyes nearer the lateral posteriors. Anterior row of eyes 
straight by their posterior margins or slightly procurved; central anteriors less than twice the diameter 
of the laterals. Clypeus very narrow, less than one-fourth the diameter of the anterior centrals. Sternum 
nearly three times longer than broad; coxee of legs subequal. Legs 3, 1, 2, 4, or 3, 1, 4, 2. Leg i. 
the stoutest, with the patella and tibia fringed below with longer hairs, Patelle i. and ii. with one inner 
spine, iii. and iv. with 1—1 spines. Tibia i. and ii. with 1—1—1 lateral spines on each side, and 1—1 
extra lateral inner spines. Protarsi i. and ii. with 1—2 spines on the outer side, 2—2 on the inner side ; 
iii, and iv. with a subbasal and an apical ring of spines. Tibie iii. and iv. with, besides lateral spines, a 
single small central dorsal basal spine. Maxille very much enlarged and dilate laterally at their apex. 
Mandibles greatly enlarged, variable individually. Both fang-grooves situated on a semi-detached 
bracket-like piece of the basal segment, variously shaped ; upper margin numerously toothed and with a 
single larger tooth at its inner, or posterior, angle ; lower margin with a single large tooth at its inner, 
or posterior, angle. The basal segment has a long, sharp, curved spur, starting from the inner margin 
in front towards the base, directed downwards and forwards; there is also often a more or less developed 
cusp on the outer margin about the middle of the basal segment. Palpi long and slender ; femur strongly 
curved ; tarsus narrow, bulb narrow and elongate, with a slender apical, slightly spiraloid, spine; tibial 
spur slender. 
1. Pensacola signata. (Tab. XVIII. fige. 7, 7a, 3.) 
Pensacola signata, Peckh. Proc. Nat. Hist. Soc. Wisc. 1885, p. 84, t. 2. figg. 18, 13 a-e( 3 2) (Dec.)*. 
Type, d, in coll. Peckham. Total length 6 millim. 
Hab. GUATEMALA}. 
I strongly suspect that this species is identical with Hamillus sylvestris, Peckh., but 
without the type-specimens at hand for examination one cannot be certain. 
2. Pensacola sylvestris. (Tab. XVIII. figg. 8, 8a-c, ¢.) 
Hamillus sylvestris, Peckh. Occas. Papers Nat. Hist. Soc. Wisc. iii. 1, p.71, t.6. figg. 8, 3 a-c (3) 
(April 1896) *. 
Type, d, in coll. Peckham. Total length 5 millim. 
Tibia and patella i. fringed with red or brown hairs beneath. Palpus clothed with white hairs; the tibia 
white and in one example with a black line down its whole dorsal length. There may be two species 
characterized by this difference in the tibia of the palpus and the red or brown hairs beneath tibia i. ; 
but I can see no difference in the palpal organs, and have not material sufficient at hand to decide the 
question. 
Hab. Mexico, Teapa (H. H. Smith); Guatema.a, Eastern district !. 
8. Pensacola radians. (Tab. XVIII. fig. 9, 2.) 
Hamillus radians, Peckh. Occas. Papers Nat. Hist. Soc. Wisc. iii. 1, p. 72, t. 6. figg. 4, 4a (9?) 
(April 1896) ’. 
