238 Transactions. — Zoolu<j!/. 



Legs and ceplialothorax concolorous, faiut-blackish annuli; 

 moderately slender, of nearly equal length and strength, fur- 

 nished with fine yellowish and black hairs ; femora armed 

 with o or 6 long spines ; patellas 1 ; tibiae of first and second 

 pairs have 11 long spines on under-side, 2 strong bristles 

 above ; 10 spines on metatarsi ; tibial joints of two hind pairs 

 armed with 8 or 9 slighter spines ; metatarsi 8 ; claws long, 

 somewhat slender, moderately and evenly curved, project up- 

 wards, free end longest ; superior tarsal claws of first pair 

 have 11 comb-teeth increasing in lengtli and strength; in- 

 ferior claw sharply curved, 2 comb-teeth, basal rather the 

 shortest ; superior claws of fourth pair 4 teeth ; inferior claw 

 2, shorter than those of first pair. 



Prt/^;! colour and armature of legs; length onun. ; palpal 

 claw long, slender, slightly curved, 2 teeth at base, outer 

 longest. 



Falces light mahogany-brown ; armed with hairs and few 

 bristles on basal half ; conical, project at base in front, in- 

 clined sensibly inwards. 



JSIaxillcB long, spathulate, slightly inclined towards ta- 

 bluvi, which is somewhat quadrate, apex concave ; one-third 

 length of maxillai ; organs mahogany-brown. 



Sternum and legs concolorous ; sparse black hairs ; broad- 

 ovate. 



Abdomen oviform, posterior end widest, base slightly trun- 

 cated, moderately convex ; rather thickly clothed with coarse 

 yellowish hairs ; yellow-brown, two somewhat acute brown 

 marks on base ; four spots in centre of back ; series of faint 

 blackish flecks on lateral margins ; few dark marks about 

 spinners. Corpus vulvce represents a large triangular area, 

 apex directed forwards ; centre somewhat depressed, reddish- 

 chocolate colour ; the margins^except the base, which dis- 

 plays a large, somewhat reniform, orange-}'ed lobe — are beaded, 

 broad, colour of lobe. 



2Ialc. — Two immature males did not differ essentially in 

 form or coloration from the female examples. 



Jenolan Caves, Voss Wehurd, A. T. U. 



EXPLANATION OF PLATE XVI. 



Fig. 1. Cydoctenus abyssinus, sp. nov. Female, three times natural 

 size : a, tarsus of fourth leg ; b, claw of palpus ; c, vulva ; 

 d, eyes. 



Fig. 2. LinypMa wcburdi, sp. nov. Female, ten times natural size : 

 a, vulva. 



The Jenolan Caves form a group of nine caverns in the 

 series of caves that occurs in tlie coral limestone range that 



