482 ARANEIDEA. 
b. Discs ellipsoidal or elongate-oval, obliquely convergent anteriorly, 
their outline at this point obsolescent; with, anteriorly, a dark 
sinuous chitinous rim outlining a shallow concave area, termi- 
nating on each side in adark spot. . . . - ee » « gracihs, sp. n. 
B. Vulva not presenting any pair of discs, either oval or sinomlar, Length 
- 7 millim. 
1. Vulva very simple, consisting of a long, broad, convex area, marked 
with four red-brown curvilinear spots, traces of the oviduct and 
perhaps orifices, forming a rectangle longer than broad 
2. Vulva more complex, consisting of a pair of chitinous curving aeteas 
converging upon the posterior margin or rima, but not meeting, 
leaving a rectanguliform vacant space. A pair of dark spots appear 
just in front of these pieces, and from them extend to the anterior 
margin a pair of irregular, longitudinal, oval discs, enclosing a 
trifurcatus. 
blandus, Peckh. 
narrow, triangular, pale space between their anterior margins. The 
form of this vulvais also variable . . . . . . + + + «+ « deinognathus. 
Norz.—The entire absence of any distinctive coloration and the close similarity in general structure of the 
females of the five species known to me render the formation of a Table based on such characters impossible. 
All the species are probably, in nature, bright emerald- or grass-green, with or without crimson spots on the 
cephalic area. This last character, at first sight likely to be of use, fails—for examples occur of the same 
species with crimson spots and others with entirely white hairs. They can, however, be easily identified, as 
can most Salticids of the female sex, by the appearance or non-appearance beneath the epidermis of the 
entrance to the ovaries, and the various convolutions of the oviduct. 
1. Lyssomanes deinognathus, Sp.n. (Tab. XIII. figg. 5, 5a-c, ¢; 6, 2.) 
Type 3, gynetype 9, in coll. Godman & Salvin. Total length, d 7, 2 7 millim. 
Hab. Mexico, Teapa (H. H. Smith). 
‘The male of this species may be recognized by the tooth on the fang-margin and the 
absence of decided fringes of hair on the protarsus of leg i. The legs have the apex of 
the segments dusky ; and the abdomen, unicolorous below, has a longitudinal, broken, 
olive-brown band on the dorsal area; the carapace has a broad central dark band. The 
coloration, however, is so variable that little reliance can be placed on it, the whole 
spider being probably green in life. Even the mandibles vary as to the number of 
teeth in the same specimen. ‘The female has four black spots on the abdomen. 
2. Lyssomanes pachygnathus, sp. n. (Tab. XIII. figg. 7, 7a, ¢.) 
Type, d, in coll. Godman & Salvin. Total length 8 millim. 
Hab. GuatTeMALa (Sarg). 
This species, of which a single male only has been received, may be distinguished 
from L. deinognathus by the greater proportionate length of the tibia of the palpus, 
and (if this be constant, which I very much doubt) by the pair of unbroken dark bands 
on the dorsal area of the abdomen. The spur at the apex of the mandible beneath 
