AGRIOGNATHA.—SYNAMA. 213 
description of Tetragnatha pachygnathoides (p. 144, supra). Having now come across 
a rather more marked species, I have formulated the present genus for the reception 
of both. 
Agriognatha bella, sp. n. 
Adult male, length a little over 2 lines. 
Cephalothorax dull orange-yellow, the caput on the upper part, and the ocular area, suffused with yellow- 
brown; the height of the clypeus about equals the diameter of one of the fore-central eyes. 
Legs similar in colour to the cephalothorax. The femora, tibix, and metatarsi of the first and second pairs are 
curved, and their tibiee and femora are tinged with yellow-brown at the extremities. Among the spines 
on the legs may be noted four in a longitudinal straight line at the base, in front, of the femora of the 
first pair. 
Falces strong, very divergent, and projecting; the outer marginal line (looked at from above and behind) is 
curved; they are prominent at the middle of the inner margin, and strongly protuberant about the middle 
in front. A few strong teeth in two rows on the inner margin: one, the strongest, is on the inner side 
at the extremity close to the articulation of the fang, and has its short curved slightly bifid point directed 
outwards ; along the convex side of the curve of this tooth are several bristles in a longitudinal line. 
Fang strong, as long as the rest of the falx; generally curved, but more abruptly so near the point; 
outer margin impressed at the middle, corresponding with which, on the inner edge, is a strongish angular 
prominence. 
Pulpi short, rather slender; radial and cubital joints short, of equal length, the former strongest, and with 
several long black bristles at its extremity and outer side; digital joint long and narrow. Palpal organs . 
very large, consisting of a large, glossy, corneous, nearly circular pale yellow lobe beneath the hinder part 
of the joint ; behind this and immediately in front of the radial joint is a rather long, straight, stalk-like, 
slightly tapering corneous process with a knob at the end, on which are disposed a few fine bristles; at 
the extremity of the circular lobe are several corneous processes, one of which, a tapering sharp-pointed 
spine, has its point near or in contact with the end of the digital joint. 
Mawille and labium yellowish, tinged with dusky yellow-brown. 
Sternum yellow. 
Abdomen oblong-oval, or somewhat cylindrical, of a dull greyish-luteous colour, marked along each side with 
a broadish band of small separate silvery spots of different sizes, leaving a central longitudinal dentated 
band clear of spots. A single line of similar spots runs along the middle of the underside. 
Hab. Costa Rica (Rogers). 
Agriognatha pachygnathoides. 
Tetragnatha pachygnathoides, Cambr. antea, p. 144, t. 18. fig. 4. 
Hab. Panama, Volcan de Chiriqui (Champion). 
SYNAEMA, Simon. 
Synema prosper, sp. n. 
Adult male, length 13 line. 
Cephalothorax broader than long, more than double the breadth across the thorax of the anterior or lower 
margin of the clypeus; looked at from above the lateral margins of the thorax are circularly curved. 
Caput short, lateral marginal indentations at the caput moderate. Colour dull orange-yellow tinged with 
brown; the ocular area, upper part of the clypeus, and two broad longitudinal bands running backwards 
from each end of the ocular area to near the posterior extremity deep blackish-red-brown, leaving a 
still broader central longitudinal orange-yellow band between the lateral bands. The normal spines on 
the cephalothorax are long and strong; the margins of the thorax are also furnished with short black 
spines. The height of the clypeus is less than half that of the facial space. 
