CTENUS.—PRUSIAS. 101 
wards ; the fore laterals are very small, close, but not contiguous to the fore centrals, being separated from 
them by a diameter’s interval only. 
The legs are long, strong, 1, 2, 4,3; the difference between 1 and 2 small. They are of a yellow-brown 
colour, clothed with coarse yellowish-grey hairs, and armed with strong black spines. Beneath the tarsi 
and metatarsi of the first and second pairs, and the tarsi and a portion of the metatarsi of the third and 
fourth, is a rather dense scopula, and a strong compact claw-tuft beneath the two terminal tarsal claws. 
On the outer side of the femora of the first pair are two large oblique patches of a darker hue than the 
rest, and the fine pubescence on the metatarsi of all the legs gives them a somewhat spotted 
appearance. 
The palpi are paler in colour than the legs, clothed with hairs, and moderate in length; the radial joint: is 
stronger than, and double the length of, the cubital, with a small pointed projection underneath close to 
its anterior extremity; on the upperside of the radial joint near the hinder extremity are three long 
tapering black bristles in a transverse line, one in a similar position on the cubital, and four near the 
anterior end of the humeral joint, with a single one behind them. The digital joint is of a narrow oval 
form, rather shorter than the radial. The palpal organs are confined to a circular space at the basal half 
of the joint, and are neither very highly developed nor conspicuous. 
The falces are powerful, straight, vertical, reddish-yellow-brown, clothed in front with coarse yellowish-grey 
and dark hairs, and the basal portion striped longitudinally with deeper red-brown ; perhaps the striped 
appearance is caused by the disposition of the hairs and pubescence ? 
The maville are strong, straight, about double as long as broad, broader at the extremities than at the base, 
rounded on their outer extremity, rather obliquely truncated on the inner extremity; yellow-brown, 
darker at the extremities, and clothed with prominent coarse hairs. 
The Zadiwm is about half the length of the maxille, longer than broad, truncate at the apex, the corners of 
which are, however, rounded off; its colour is dark yellow-brown, paler at the apex. 
The sternum is oval, clothed with coarse dark hairs of a dark yellow-brown colour, rather paler in the 
middle. 
The abdomen is oval, pale yellow-brown, clothed with pubescence and coarse bristly yellowish-grey hairs; 
along the middle of the whole length of the upperside is a broad dark brown slightly tapering band, 
rather dentated on the margins of the hinder part, and with a clear yellowish central stripe along the 
fore part for about a quarter of its length ; this stripe is obtusely pointed behind and has a subprominent 
obtuse point on each side near the middle. Nearly the whole of the underside is occupied by a broad, 
tapering, longitudinal dark black-brown band reaching from end to end. The spinners are short, compact, 
the four outer ones nearly equal in length. 
The female resembles the male pretty nearly in general colours and appearance, but the legs are much 
shorter and stronger ; the femora of all the legs are marked in front with oblique dark yellow-brown 
bars, giving them a somewhat annulose appearance, but there is no white mottling with pubescence on 
the metatarsi as in the male. The cephalothorax also is of a uniform yellow-brown hue, and the 
markings on the upperside of the abdomen are less distinct. The spinners pale yellow. 
Hab. Guatemata, Salinas de Nueve Cerros (Sarg). 
PRUSIAS, gen. nov. 
Nearly allied to Sparassus, Walck. 
Cephalothorax longer than broad, well rounded behind, and narrowing to the caput, with a strong lateral 
marginal indentation on each side at the junction of the caput and thoracic segments. The profile from 
the anterior row of eyes to the hinder slope forms an easy continuous curve. Clypeus almost obsolete. 
Eyes in two transverse, curved, nearly equal rows (the front row rather the longest), occupying almost the 
whole width of the caput, the convexity of the curves directed forwards, and that of the anterior row the 
strongest ; they are subequal in size, those of the fore central pair the largest. 
Legs long, slender, 2, 1, 4, 3, armed with very long slender spines and long bristly hairs on the tibie and 
