AUSTRALIAN TRAT-DOOK Sl'IDERS HAlN'liOW AND HULLEINE. 159 



S>t}>faniUii DIPLURIN^. 



Group DIPLURP]yE. 

 Genus Clienistonia, Iloijij. 



ChENISTONIA MAJOK, lliKjij. 



(PI. xvii., tig. 31, and PI. xxiv., figs. 11:3 and 11-i.) 



Cheitistouia major, Hogg, Proc. Zool. Soc, 1901, p. 263, fig. 36. 



()hf>. — Several male and female examples of what is apparently (J. 

 ■major, Hogg, were collected at Morialta GriiUy and Mallala, Sontli Austi'alia. 

 The female examples vary in size and somewhat in colonraiion, bat other- 

 wise agree very well with the author's brief description. Tliere is a dark 

 median area upon the supei'ior surface of the different individuals, but the 

 " mottly diagonal side stripes," to quote from the original description 

 (supra) are by no means distinct. 



The author quoted says : — " Among a good many females, I have not 

 a male." In the series collected by one of us [R.H.P.] there are several, 



Hab. — Morialta Gully, above first watei-fall, and Mallala, South 

 Australia. 



The description of the male is as follows : — 



^. Cephalothorax, 9-5 mm. long, 8-1 mm. broad ; abdomen, 10*3 

 mm. long, 5'6 mm. broad (PI. xvii., fig. 31). 



Cephalotliorax. — Obovate, dark brown, sparingly clothed with yellowish 

 pubescence, arched. Pars cephalica ascending, narrow in front, segmental 

 groove distinct ; ocular area broader than long, raised ; dypens narrow. 

 Pars tlioracica broad, radial grooves distinct ; thoracic fovea deep, straight; 

 marginal hand fringed with rather long hairs. Eyes. — Distributed over 

 two rows of four each, the front row being procurved and the rear recurved ; 

 front side eyes somewhat elliptical, poised obliquely, slightly larger than 

 their median neighbours ; the latter are round, and sepai'ated from each 

 other by a space equal to one half their own individual diameter, and each 

 again from its lateral neighbour by about the same space ; rear side eyes 

 equal in diameter to anterior medians, elliptical, and poised obliquely ; 

 i^ear median eyes smallest of the group, elliptical, each just touching the 

 upper point of its lateral neighbour. Legs. — Rather lighter in colour than 

 cephalothorax, densely hairy and strongly bespined ; tibia i. has an apop- 

 hysis, at summit of which there is a powerful spine (PI. xxiv., fig. 113) ; 

 metatarsi partially scopulated, the tarsi fully so ; relative lengths : 4, 1, 

 2, 3. Palpi. — Long, strong, similar in colour, clothing and ai'mature to 

 legs ; bulb large, somewhat pear-shaped, bilobed, shining, and terminating 

 in a long, fine and tapering style (PI. xxiv., fig. 114). Falces. — Concolorous 

 with cephalothorax, not very strong, narrow and densely clothed with fine 

 hairs and long coarse bristles ; inner ridge of the furrow of each falx 

 armed with a row of seven strong teeth, with, at the base, an intex'mediate 

 series of three or four minute ones ; fang long, shining, dark brown, well 



curved. Ma.xilUe Dark brown, long, rather narrow, arched, hairy, 



slightly excavated around the lip, heel well rounded, furnished at base 



