174 _ ARANEIDEA. 
or fine lines ; spinners short, compact, and of equal length, at least those of the superior and inferior 
pairs. The abdomen is clothed, but not densely, with fine hairs. 
The female resembles the male in general appearance, colours, and markings; length from 5 to 6 lines; 
genital aperture (if indeed the specimens examined were adult) exceedingly minute and inconspicuous. 
Hab. Guatemaua, Cahabon, and between Dolores and Chapallal (Sarg) ; Costa Rica 
(Sarg, Rogers). 
This species may be easily distinguished from 7. extensa by its much smaller size, as 
well as by the different structure of the palpi and palpal organs. 
Triclaria extensa, sp. n. 
Adult male, length 8 lines; length of cephalothorax 42 lines, breadth of cephalothorax 4 lines. 
The cephalothorax is rather longer than broad, flattened, and the profile is level to the hinder slope; clypeus 
broad, prominent, and squarely truncate at its lower margin, its height being equal to half that of the 
facial space; lateral marginal constriction at the caput rather slight. It is yellow-brown in colour, clothed 
with short fine hairs and with darker converging stripes or broad dashes; just behind the ocular area are 
two longitudinal short tooth-like dark brown tapering markings; ocular area deep black-brown. 
Eyes in two transverse curved rows, the convexity of the curves directed forwards, the posterior row greatly 
the longest and most curved. The quadrangle of the four central eyes is a little broader than long, and 
the anterior side shortest. The eyes of the posterior row are much the largest, and subequal; the fore- 
laterals much the smallest. The interval between the fore-centrals is not much more than half a diameter, 
and each is separated by half that interval from the fore-lateral next to it. The interval between the 
hind-centrals is about two-thirds of a diameter, and each is about double that distance from the hind- 
lateral next to it, the interval between the hind-central and fore-central eyes is about three-fourths of a 
diameter of the former. The position of the eyes is thus very like that in the genus Dolomedes, Latr. 
Legs of great length, subequal, tolerably strong, and tapering, 2,4, 1,3. The greater length of the fourth 
pair is caused by the extra length of the tarsi. The actual length of the legs is 372, 36, 323, and 294 lines. 
They are of the same colour as the cephalothorax, without (or with scarcely) a trace of darker annula- 
tions, armed with numerous long, tolerably strong spines, on all excepting the tarsal joint, and pretty 
thickly clothed with hairs, most of which are long, slender, and divergent, amounting beneath the 
tarsi to a scopula. Tarsi long, slender, cylindrical, and curling up as if multi-articulate, after preser- 
vation in spirit of wine; tarsal claws three, the superior pair long, rather strong, strongly curved, and 
armed on the posterior half with 5-6 denticulations ; the inferior claw springs from a kind of prominence 
beneath the joint, but it does not appear to be a distinct claw-joint. 
Palpi moderately long, similar in colour to the legs (excepting the digital joint, which is brown-black), and 
furnished with spine-like bristles and long coarse hairs, longest and densest on the digital joint; radial 
joint longer than the cubital joint, but not greatly so, its fore extremity underneath is rather incrassated, 
at its extremity on the outer side is a black-brown, shining, corneous-looking, prominent apophysis, some- 
what bent, tapering to the middle and thence enlarging a little to a bluff termination on the outer side 
and a short bluntish beak-like prominence on the inner side. A little in front of and underneath this 
apophysis is another, more red-brown in colour, much broader and stronger, and deeply emarginate or 
bifid at its extremity. Digital joint almost as long as the radial and cubital joints together, of an elongate- 
oval, drawn out at its fore extremity. Palpalorgans not very prominent nor complex, placed beneath the 
posterior half of the joint. 
Falces long, powerful, straight ; profile strongly convex; colour deep blackish-brown. 
Masille moderate in length and strength, straight, rounded on their outer, and obliquely truncated on their 
inner extremity, narrowest across the middle, placed rather widely apart, and of a deep yellow-brown 
colour. 
Labium rather higher than broad, about half the length of the maxille, truncate at the apex, and similar in 
colour to the maxille. 
Sternum equal in length and breadth; the posterior extremity produced into a fine sharp point at the inner 
