STUDIES IN AUSTRALIAN ARANEID.f: RAINBOW. 255 



round lahiuni, aiul tei-ininat injif in a heel; apical inner ex- 

 tremity obtusely pointed ; for jatlier more than half the upper 

 surface each maxilla is studded wifli small, erect, toothlike 

 spines, imparting a decidedly granulated appearance ; these 

 spines are mucli more numerous near the base; inner angles 

 fringed with long red hairs. 



Lahiuj)). — Concolorous, slightly longer than broad, arched, 

 moderately hairy ; upper half densely spined, imparting to 

 that portion of tlie lip the same granulated appearance as 

 noted in respect of the maxillfe. 



Stermoii. — Concolorous. also, sparingly clothed, with long 

 hairs, slightly arched, narrowest in front where it is profoundly 

 indented to receive base of lip ; it is widest at a point between 

 coxfe iii. and "iv. ; sigilla six, large, marginal; posterior pair 

 largest. 



Abdoineii. — Obovate, overhanging base of cephalothorax, 

 dark-brown, hairy ; pulmonary sacs and chitinous plate in front 

 of riiiia e^iigasteris concolorous with sternum ; the pla.tehas also 

 two large sigilla. 



tS}nnnerets. — Yellowy short; i^uperior mammillae stout, taper- 

 ing ; basal joint longest and stoutest ; second very slightly 

 longer than third ; inferior mammillfe short, and separated 

 from each other by a space equal to about once their individual 

 transverse diameter. 



Hab. — Jenolan, New South Wales. 



PAtrax fokmidabilis, s}). nov. 

 (Figs. 63-66.) 



<J Cephalotliorax 11.5 mm. long, 9.6 mm. broad ; abdomen, 

 10.5 mm. long, 7.3 mm. broad. 



Cephalot](ora,v. — Obovate, arched, shining, rich dark-brown, 

 smooth. Pars cephalica moderately raised, strongly arched, 

 sides compressed, sloping backwards to thoracic fovea, a few 

 fine setae distributed over the surface ; ocular area a moderately 

 raised tubercular eminence, much broader than long, almost 

 black, arched laterally and longitudinally, and furnished in 

 front with a few bristles ; rlijpeits deep, precipitous, yellowish. 

 Pars thoracica broad, arched ; radial grooves broad, distinct ; 

 thoracic fovea diee\>, broad, procurved ; manjlnal havd reflexed, 

 thinly fringed with moderately long hairs. 



