136 ARANEIDEA. 
SINGA, Koch. 
Singa flava, sp. n. 
Adult male, length 14 lines. 
The whole of the fore part of this spider is of a bright orange-yellow colour, excepting the tibie, metatarsi, and 
tarsi of the third and fourth pairs of legs, which are brownish-black, and the digital joints of the palpi, 
which are dark yellowish-brown. 
Cephalothorax of normal form. 
Eyes in the usual position, on tubercular prominences and strong black spots. The four centrals form nearly 
a square, whose anterior side, however, is distinctly longer than the posterior. The interval between the 
hind-central pair is less than a diameter; the tubercles on which the fore-central pair are seated are 
stronger and more prominent than the rest. The hind-centrals are slightly larger than the other eyes. 
The clypeus is hollow and retreating, and its height is about half that of the facial space. 
The legs are rather long, moderately strong ; the spines not numerous, nor strong, but some (on the tibie of 
the first pair) rather long ; colour as mentioned above. 
The palpi are short. The cubital joints very short, somewhat nodiform, or subconical, with two long, strong, 
curved, tapering black spine-like bristles of equal length issuing from the middle of the anterior side ; 
digital joint and palpal bulb large. Palpal organs highly developed, prominent, and rather complex, with 
spines and corneous processes. 
Abdomen oval, of a dull luteous or clay-yellow colour, slightly tinged with rusty red at the hinder part, and 
with a short, slightly curved, longitudinal white dash or stripe on each side of the anterior extremity. 
Hab. Mexico, Tierra Colorada, on the road from Chilpancingo to Acapulco, altitude 
2000 feet (7. H. Smith). 
TURCKHEIMIA, Cambridge. 
Turckheimia diversa, sp. n. 
Adult female, length 3 lines (to extremity of the posterior abdominal prominences), length of cephalothorax 
13 lines. 
Cephalothorax oval, moderately constricted laterally at the caput ; occiput and thorax very gibbous, chiefly owing 
to the depth of the normal indentations. It is of a dull yellowish-brown colour, covered with greyish 
pubescence. 
Eyes small, in normal position ; those of the central group form a small trapezoid whose posterior side is shorter 
than the others, and the two eyes of which it is composed are very nearly contiguous to each other. The 
lateral pairs are smallest, seated on a tubercle and near together, but not contiguous to each other. The 
clypeus is very low, its height being less than the diameter of one of the fore-central eyes. 
Legs short, 1, 4, 2, 3, rather strong, furnished with hairs and small short spines ; the tibiz are rather bent, and 
enlarge at their anterior extremities. Their colour is yellow, distinctly, though not quite symmetrically, 
annulated with dark black-brown. 
Faices moderate in length and strength, vertical, and prominent in front. 
Mazille short, broad, much inclined towards the labium, dark brown, with pale extremities. 
Labium very short, of a somewhat subtriangular form, dark brown, with pale apex. 
Sternum heart-shaped, mottled with brown, yellowish-white. 
Abdomen large, oval, slightly pointed in front; the hinder extremity projecting greatly beyond the spinners ; 
the length from the fore extremity on the underside to the spinners being less than that from the latter 
to the hinder extremity. Rather in advance of the middle of the upperside, in a transverse line, one on 
each side, are two rather strong, bluntly subconical eminences ; at the hinder extremity are three other 
eminences in a transverse line, the middle one subconical like the two anterior ones, the lateral ones 
nearly round and stronger than the middle one, and a little way in front of this last is another much 
smaller and subconical eminence. These eminences, as well as the rest of the surface, are covered thickly 
with short grey-yellowish and brownish hairs. The general colour is dull yellowish-brown, marked 
pretty symmetrically with black spots and markings, which are edged with somewhat angular or dentated 
