60 ARANEIDEA. 
a synonym of Gnaphosa—since the type of Drassus is D. lucifugus (Walck.), a species 
which now falls under the genus Gnaphosa. 
‘The two species known to me may be distinguished by the following characters :— 
A. Tibia iii. and iv. without dorsal spines. Vulva large, with a stout 
chitinous horseshoe, its open side directed forwards . - - + + + ferrum-equinum, sp. 0. 
B. Tibie iii, and iv. with dorsal spines. Vulva small, hemispherical, with 
a tongue-like process, very narrow at its base, suddenly broadening 
into a transverse oblong piece behind. . . - - + + + + + ° centralis, sp. 0. 
1. Drassodes ferrum-equinum, sp. n. (Tab. IV. figg. 12, 124, 6, 2.) 
Type, 2, in coll. Godman & Salvin. 
@. Total length 7°5 millim. 
Carapace mahogany-brown, suffused with dark sooty-brown over the ocular area, and lightly reticulated with 
the same colour over the sides. Sternum deep mahogany-brown, suffused with darker brown over the 
margins. Legs mahogany-orange-brown. Abdomen clothed with short madder-brown pubescence. 
Posterior row of eyes slightly procurved, eyes subequal, centrals almost in contact, just under one transverse 
diameter apart; anterior row slightly procurved, eyes subequal, almost in contact; laterals scarcely 
one diameter apart. Clypeus as high as one diameter of an anterior central eye. Tibie iii. and iv. 
without dorsal spines. Vulva horseshoe-shaped. (See Tab. IV. fig. 12.) 
Ilab. Mexico, Amula in Guerrero (H. H. Smith). 
This small species belongs to that group of the genus of which D. troglodytes, C. Koch, 
may be regarded as the type, characterized by the more closely grouped eyes and the 
absence of spines on the upperside of tibiz iii. and iv. 
2. Drassodes centralis, sp.n. (Tab. IV. fig. 13, 9 .) 
Type, 2, in coll. Godman & Salvin. 
Q. Total length 9 millim. 
Carapace, legs, and sternum pale yellow-brown, suffused over the caput with darker mahogany-brown. 
Mandibles and margins of sternum also darker. 
Central posterior eyes distinctly larger than the laterals, less than half a diameter apart, two diameters from 
the laterals; posterior row slightly procurved ; central anteriors a full diameter apart, less than half a 
diameter from the laterals; anterior row slightly procurved ; laterals of both rows one diameter apart. 
Clypeus (in centre) one and a half diameters from the central anterior eyes. Upper margin of fang-groove 
with three teeth, lower margin with two teeth. Protarsi i. and ii. with a single spine beneath close to 
the base. ‘Tibi i. and ii. with a single spine about the middle beneath. Tibie and protarsi iii. and iv. 
numerously spinose. ‘Tibiz ili, and iv. with two dorsal spines above, one near the base, the other 
towards the apex. Tarsi and protarsi i. and ii. scopulate beneath ; tarsi iii. and iv. alone scopulate. 
Vulva transverse triangular, with curved sides, forming a black-margined hemicircle; from its anterior margin 
springs a tongue-like process, very narrow at the base, suddenly enlarging to form a broad, transverse, 
oblong chitinous piece, margined with black, its posterior side slightly protuberant in the middle ; close 
to its anterior angles lies a smooth round chitinous spot. 
Hab. Mexico, Puebla (Godman). 
This species belongs to the group of which the type of the genus, D. lapidosus, is a 
typical representative. 
