AUSTRALIAN I'UAl'- HOoi; SI'l I'KK'S- — |;AINI;()\V ANh li'M.KIXK. 165 



fine spines, those on legs iii. and iv. being the most nnmerous ; mefatarsi and 

 tarsi i. and ii. scopnlated ; taisi iii. and iv.only sco]»ulated ; claws tluee, infe- 

 rior claw very small: lelative lengths: 4,1,2,8. I'idpi. — Concoh)ious with 

 legs, short, strong, haiiy, spined ; tarsi scopulated. FalceK. — Piojected, 

 dark brown, w'ell clothed with short, fine hairs and coarse bristles, but 

 displaying naked areas ; inner ridge of the furrow of each falx armed with 

 nine strong teeth, in addition to "which there is an intermediate series of 

 three or four minute ones at the base. Maxilhv. — P eddish-brown, inner 

 angle yellow, arched, hairy, excavated at base, where there is a cluster of 

 small spines, heel well rounded, beard red. Ltdriioii. — Concolorous, short, 

 very slightly broader than long, arched, free; three or four small spines 

 near apex, which latter is slightly excavated, and fringed with stiff bristles; 

 a few fine hairs on surface. Sterniiiti. — Concolorous with labium, slightly 

 arched, elongate, broadest between third pair of coxae, clothed with 

 stiff bristles ; sigilla moderate in size, marginal, posterior pair largest. 

 Ahdoiiten. — Obovate, arched, hairy, slightly overhanging base of cephalo- 

 thorax ; superior surface yellow, ornamented with broken or interrupted 

 brown markings, the latter forming an irregular design consisting of a 

 longitudinal band and three or four transverse bars ; inferior surface 

 yellow with dark brown spots. S^jimiei-ets — Pale yellow, hairy ; superior 

 pair nearly half as long as cephalothorax, tapering, second joint slightly 

 the shortest, first and third of equal length ; inferior spinners very short, 

 rather thick, rounded at apex, and separated from each other by a space 

 equal to once their own individual transverse diameter. 



Ohs. — Two immature examples were collected [R.H.P.] in August, 

 1908, and two fully grown ones in August, 1910. Of the latter one is 

 considerably lighter in colour than the other. Probably it is slightly the 

 younger of the two. 



Hah. — Stanwell Park, New South Wales. 



Geuns Atrax, 0. P. Camhr. 

 Atrax valida, sjj. nov. 

 (PI. xxiv., fig. 119.) 



$. Cephalotliorax, 12'6 mm. long, 96 mm. broad; abdomen, 14*8 

 mm. long, 9"6nim. broad. 



Cephalothorax. — Obovate, dark brown, arched, shining, very sparingly 

 clothed with fine yellow hairs. Pars cephalicu fiinged in front with short, 

 fine black hairs, ascending, high, slightly depressed on each side of eye 

 space, sloping gently from summit to clypeus, sides compressed and 

 unevenly indented, a median fringe of long, moderately stiff black bristles 

 runs from base to ocidar area, which latter is broader than long ; clijpens 

 narrow, precipitous, undulated, yellowisli at sides, reddish-brown at middle, 

 where it is furnished with a rather large tuft of black bristly hairs. Pars 

 thoracica uneven, radial grooves distinct ; thoracic fovea moderately deep, pro- 

 curved ; marginal ha)td narrow, yellowish, fringed with stiff black haii's. 

 Eyes. — Distributed over two rows of four each ; view^ed from the side the 

 front row is straight, or but very slightly procurved ; rear row recurved ; 



