TETRAGNATHA.—DELOZEUGMA. 145 
Legs long, 1, 2, 4, 38, moderately strong, the metatarsi of the first pair, however, greatly attenuated; very 
unequal in length ; the first pair at least four times the length of the spider, those of the third and fourth 
pairs very much the shortest. Spines on the femora apparently stronger and more numerous than on the 
tibia, but the armature of the legs had been much damaged. 
Palpt short and slender ; radial joint longer and much more strongly clavate than the cubital; the stump only 
of a strong spine-like bristle at the anterior extremity of the upperside of the latter; digital joint long 
and narrow. The palpal organs consist of a large, shining, pale, fillet-shaped lobe, with which several 
other strong corneous processes are connected on the outer side; and on the inner side, at their base, is an 
elongate straight process whose extremity is rather enlarged and rounded. 
Falces long and strong, tapering, very divergent, but not projecting forwards ; from tip to tip in front nearly 
equal to the length of the cephalothorax ; the teeth on their inner sides are neither very strong nor nume- 
rous. The fangs are long, for the most part straight, but their pointed extremities rather abruptly bent. 
The abdomen is of a subcylindric form, rather longer than the cephalothorax, and a little broader behind than 
in front; near the hinder extremity, above the spinners, is a strongish somewhat subconical prominence. 
Its exact form is uncertain, as its extremity (in the only example I have seen) was injured. The colour 
of the abdomen is a pale luteous-yellow ; the sides, underside, and a portion on each side of the upper 
surface more or less thickly clothed with bright silvery, somewhat scale-like, spots of various sizes; the 
distribution of these spots on the upper surface leaving an elongate, central, longitudinal, tolerably well- 
defined, dentated unspotted band. 
Hab. Panama, Volcan de Chiriqui (Champion). 
DELOZEUGMA, Cambridge. 
Delozeugma depictum, sp. n. 
Adult male, length 4 lines ; length of cephalothorax 1? lines, width at the widest part rather over 14 lines ;. 
length of falces 17 lines. 
The cephalothoraa is short, broad-oval, truncated in front, and the lateral marginal compression on each side 
at the caput is rather abrupt and strong ; its colour is bright reddish yellow-brown, covered thinly with 
a short grey pubescence, and with an unevenly edged longitudinal lateral stripe, and a narrower marginal 
one on each side of a deep reddish-brown hue, the normal lateral grooves are also indicated by short 
broken converging dark brown markings ; from each of the hind-central pair of eyes an indistinct rather 
diffused longitudinal line runs backwards, and the normal central indentation is marked by a very distinct 
but fine blackish longitudinal line. 
The eyes are very nearly normal in relative size and position ; but the intervals between those of the posterior 
row are very nearly equal, if anything the interval between the central pair is slightly less than that 
between each of them and the lateral eye of the same row on its side. The intervals between those of 
the anterior row are equal; the line formed by the central pair of this row is distinctly longer than that 
of the hind-central pair. The four central eyes form a quadrilateral figure whose length is a little 
greater than its breadth and its hinder side shortest. The height of the clypeus is about equal to the 
diameter of the fore-central eyes. 
The falces are long and strong, nearly cylindrical, but rather tapering forwards, and projected almost on a 
level with the cephalothorax ; each falx has two strong, sharp, prominent teeth on the outer side of the 
lower margin, and the fang, which is long, strong, and well curved, rests longitudinally along the 
underside of the falx, reaching to its hinder extremity. The fang has no tooth on its underside, like that 
of D. formidabile, Cambr. The colour of the falces is a deep rich red-brown. 
The legs are tolerably long, moderately strong, 4, 1, 2, 3. They are pale brownish-yellow in colour, with a 
few indistinct dusky annulations and some fine short spines on the tibiw, metatarsi, and femora, the spines 
on the tibie of the first and second pairs of legs being arranged longitudinally two and two in four pairs. 
The palpi are short ; the radial is a little longer than the cubital joint, and has a strong, tapering, slightly 
curved, and obtusely pointed apophysis at its extremity on the outer side; from the hinder margin, a little 
in advance of the middle of this apophysis, is a strong, vertical, tapering, sharp-pointed spine-like tooth, 
giving, from some points of view, a strongly bifid termination to the apophysis. The digital joint is long, 
BIOL. CENTR.-AMER., Arachn. Aran., August 18965. ut 
