OCR Text |
Show 1899.] NEW EXOTIC ARANEIDEA. 521 Eyes unequal, the central quadrangle scarcely broader than long, the anterior side shorter than the posterior. The eyes of both the anterior and posterior rows appear to be about equally separated. The height of the retreating clypeus rather exceeds the diameter of the fore-central eyes. The fore-lateral eyes are much the smallest. Legs neither long nor very strong, 1-2-3-4, furnished with hairs and a few fine spines ; femora black, with a broad clear whitish-yellow aunulus near their base ; this annulus does not extend, in the first pair of legs, beyond the anterior part and sides ; the rest of the legs is brown ; the tibiae semi-annulated with yellowish, the tarsi and metatarsi are palest, the hairs on the pale annuli are grey. Palpi similar in colours and markings to the legs. Falces powerful, vertical, roundly prominent at their base in front. Colour deep shining brown. Maxillce and labium deep brown, tipped with pale yellowish-white. Sternum deep brown, with small eminences opposite to the insertion of the legs and clothed with adpressed grey hairs. Abdomen oval, obtuse anteriorly, broadest in the middle, slightly prominent a little way above the spinners. Colour sooty-black, with a somewhat velvety look, marked on the upperside with yellowish-white oval and round spots of different sizes, forming a regular pattern ; these spots are all clothed with silvery grey hairs ; four form a square at the fore-side, followed by four other smaller ones, towards the spinners, the first two in a transverse line, and on each side of these are several others ; on each side of the abdomen towards the spinners are some parallel irregular white lines, and in front of them, near the spiracular plates, is a rather large whitish-yellow patch. The underside is velvety black ; at the middle on each side is a slightly curved longitudinal line of small white spots, and across the middle are two parallel white lines rather near to each other. Spinners short, compact, black-brown, and on each side of their base are two yellowish-white elongate spots. The genital aperture, in front of a small semicircular prominence, is rather inconspicuous but of characteristic form. Hab. Singapore. Beceived from Mr. H . N . Ridley. POLTYS BIMACULATUS, sp. n. (Plate XXIX. fig. 4.) Adult female, length to posterior extremity 6 lines ; height from extremity to summit of the abdominal elevation 10| lines. General form and structure normal. Cephalothorax very gibbous both on tbe caput and thorax. Normal grooves and indentations very strong. Colour yellow, the oblique indentations at the junction of the caput and thorax are marked with a reddish line, and there is also a central longitudinal one from the occiput to the thoracic indentation. The prominence on which the central group of eyes is placed is furnished in front and around with strong grey and black bristles. |