GNAPHOSA. 55 
the absence of regular pairs of spines beneath the tibiz and protarsi of the first and 
second pairs of legs. 
The seven genera recorded from Central America may be distinguished by the 
following characters :— 
AA. Posterior row of eyes strongly procurved . . . . . . . . . Ecuemus, E. Sim. 
BB. Posterior row of eyes straight, or only slightly procurved. 
A. Lower margin of fang-groove without a carina, either toothed or 
plain. 
i. Lower margin of fang-groove armed with two teeth. . . . . Drassopes, Westr. 
ii. Lower margin of fang-groove either plain or armed with a single _ 
minute tooth. 
a. Maxille almost straight, enlarged at the apex. . . . . . Bownwna, O. P.-Cambr. 
6. Maxille strongly curved. 
1. Posterior row of eyes not, or scarcely, wider than the 
anterior row. 
a*, Posterior row of eyes widely distant from anterior row. 
Central posteriors two and a half diameters apart . . Czxsonia, E. Sim. 
6*, Posterior row of eyes close to the anterior row. Central 
posteriors scarcely one diameter apart . . . Prosrussima, L. Koch. 
2. Posterior row of eyes much wider than anterior row. (An- 
terior centrals much larger than the laterals.) . . . . Scoropnaus, EH. Sim. 
B. Lower margin of fang-groove with a stout chitinous carina. . . Gnapuosa, Latr. 
GNAPHOSA. 
Gnaphosa, Latreille, Nouv. Dict. d’Hist. Nat. xxiv. p. 134 (1804). 
Drassus, Walckenaer, Tabl. Aran. p. 45 (1805). 
Type G. lucifuga (Walck.). 
This genus, resembling in general appearance Prosthesima, is found all through the 
temperate regions and those bordering on the tropics, equally in Europe, Asia, Africa, 
and America. Only two species, one of which is remarkable for the long spiral spine 
attached to the palpal organs, have been observed in Central America, though numerous 
others doubtless occur there. 
1. Gnaphosa spiralis, sp. n. (Tab. IV. figg. 18, 18 a-e, 3 .) 
Type, d, incoll. Godman & Salvin. 
3g. Total length 3 millim. 
Carapace and legs bright orange-yellow, the former finely margined with black; abdomen clothed with 
mouse-grey pubescence, having in front a red-brown coriaceous area, its anterior margin fringed with 
long black hairs. For the figure of the palpal organs, eyes, &c., see Tab. IV. 
Hab. GUATEMALA (Sargq). 
A single adult male of this remarkable species has been received from Mr. Sarg. 
