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Show 462 mr . n . r . i io c g o x a u s t r a l a s i a n s p id e r s . [Dec. 2, dark orange; coxae, legs, and palpi bright orange. Abdomen above rough dark brown skin with fine yellowish hairs; the underside paler with a small dark lunate stripe behind epigyne, but no others. The cephalothorax is rather longer than broad, rounded at sides, a deep thin fovea enlarged at each end, shallow corrugations along each side of thoracic part. The eye-space is on a low flat quadrangle distinctly raised at the rear as well as at the sides; the rear row is clearly procurved, the rearmost point of lateral eyes reaching only to a line passing through the middle of the medians; the eyes equidistant, equal in size to one another and to the front median. These latter are half their diameter apart and about half that distance from the laterals, which are clearly larger than the median. There are only three teeth on lower edge of falx-sheath, the fourth, small one, of P. regina having disappeared. The epigyne of the female is much squarer and more open at the base than in the latter. Measurements in millimetres. Long. Broad. Cephalothorax . 6 {? 1 0 Abdomen ......... 8 I 6 Mandibles......... 3 longer than pat. i. Pat. & Metat. Coxae. Tr. & fem. tib. & tars. Legs ................. 1. 2 81 n 81 = 29 2. 2 81 91 81 = 29 3. 2 7 7" 6| = 224 4. 212 8 8 8~ 264 Palpi ................. . . . . 1! 21 ^2 21 ^2 2 = 8| Two females from Perth, West Australia, in Brit. Mus. P e d ia n a h o r n i Hogg. Isopeda horni Hogg, Rep. Horn Exp. vol. ii. Zool. 1 8 9 6 , p. 3 4 0 . The eyes of the front row are equal in size; epigyne oval like that of P. regina ; no spines on tibia iii. or iv .; the front and rear legs are set on rather straight. Loc. Oodnadatta, South Australia. P e d ia n a t e n u is , nov. sp. (T e x t -fig . 1 0 3 .) This species more closely resembles the preceding; they are both larger and less brightly coloured than P. regina; the eyes are set on a similar raised space. The cephalothorax, legs, palpi, mandibles, sternum, lip, and maxillae are all black-brown with pale brown hair. The undersides of the femora of front two pairs of legs are bright red spotted with black ; the abdomen above is yellowish grey, below reddish brown hair; a black transverse area behind the epigyne is rather deeper than in P. horni, almost a short pointed shield. The eyes are bright orange; those of the front row, on a plane |