1902.] MR. H. R. HOGG ON AUSTRALIAN SPIDERS. 125 



Measurements in millhnetres. 

 Long. Broad. 



Cephalotliorax ... 6 5 



Abdomen 7| 5 



Mandibles 3 total length. 1 ^ horizontally. 



Trochantev Patella Metatarsus 

 Coxa. & femur. & tibia. & tarsus. 



Legs 1. 2 4 4 3 = 13 



2. 2 4 4 3 = 13 



3. 2 U U 3i = 12A 



4. 2 5^ 5~ 5" = 17^ 

 Palpi U 31 3i 2 = 101 



Subfamily C t E x i z i x ^. 



The following synopsis will serve to distinguish the Australian 

 and Isew Zealand genei-a : — 



1. Abdomen corrugated, two strongly marked 



muscle-spots on upper side of abdomen. The 

 eyes of the front row situated at the four 

 corners of a trapezium markedly longer than 



broad '. Idiosoma. (PL XIII. fig. 8.) 



Abdomen smooth or hairy, but with no corruga- 

 tions. Trapezium formed by the four eyes of 

 the front row, in all cases broader than long ... 2. 



2. Front row of eyes procurved ; but a line touching 



the upper points of the laterals lies not more 

 than ^ their diameter below that touching the 



lower "edge of the median pair 3. 



Front row of eyes so much procurved that a line 

 joining the upper points of the laterals lies at 

 least their diameter below one touching the 

 lower edges of the median 5. 



3. The line joining the centres of the rear row of 



eyes straight orrecm'ved 4. 



The line joining the centres procurved Dyarcyops, gen. nov. 



4. Posterior sternal sigilla moderate in size and 



marginal Arhanitis. (Pl.XIII.fig.il.) 



Posterior sternal sigilla large and removed from 

 the margin ' Canhiaria. 



5. The line joining the lowest points of laterals of 



rear row of eyes passing below the centres of 



the median pair of the front row Anidiofs. (PI. XIII. fig. 9.) 



The line joining- the lowest points of laterals of 

 rear row of eyes passing above the upper points 

 of the front medians 6. 



6. The whole eye-space much broader than long 



(1^-2? times) ; the front two pairs of legs scopu- 



lated on tarsi only Aganippe (including 



The whole ej'e-space more nearly square, the Eucyrtops Poc.) 



breadth not exceeding Ij-li times the length ; 

 the metatarsi of front two pairs of legs 

 scopulated BlaJcistonia, gen. nov. 



I append for comparison a series of diagrams of the_ eyes of 

 members of this subfamily, showing the manner in which they 

 vary. I have carefully measured the various specimens from 

 which they are taken and drawn all to the same scale ( X 10). 



