1902.] 



MR. H. R. HOGG ON AUSTRALIAN SPIDERS. 



131 



teeth, reaching halfway across the front and some distance up 

 the inner edge of the falx. The teeth on the falx -sheath consist 

 of five large and three smaller on the inner edge and five at the 

 lower end of the outer edge. 



The maxillce are broad, straight in front, with only a small 

 protuberance on the inner corner. The lower end is rounded and 

 curved in round the lip, that portion being rather thickly studded 

 with spines. The lip is sunk below the maxillse ; it is about as 

 long as broad, straight in front, and without spines. 



The sternum is broadest opposite the third pair of coxaj, where 

 the fourth pair of sigilla show prominently a little away from the 

 margin, the others being mai'ginal. 



The abdomen, rather deeply pitted, is covered with fine hair 

 and a few bristles on roots on the upper side ; it is longer than 

 broad, somewhat ovate truncate in front and rounded at rear. 

 The superior spinnerets are shoi-t and stout, the first joint longer 

 than the other two together, the third being almost hemispherical ; 

 the inferior pair are about their diameter apart. 



The legs are rather short and stout, the fourth pair scarcely 

 longer than the first. The metatai^si and tarsi of front two pairs 

 are thickly scopulated, but none on either joint of third and 

 fourth pair. The superior tarsal claws are long, stout, and 

 strongly curved, having one longish pectination near the base on 

 the outer claw and two on the inner. The third claw is smooth, 

 and there is one pectination at the base of the female palp-claw. 



Four females (two not quite adult), taken by Mr. F. W. 

 Andrews at Mount Compass, South Australia. 



Measurements in millimetres. 



Long. Broad. 



Oephalothorax ... 12 \ ^ 



Abdomen 11 7 



Mandibles 6| 4 horizontally. 



Pat. & Metat. 

 Coxse. Tr. & fern. tib. & tars. 



Legs 1. 5 11 10 



2. 4| 9 9 



3. 3i 8 6 



4. U 10 11 

 Palpi 5" 9 7i 



Blakistonia, nov. gen. 



I have somewhat doubtfully constituted a new genus for two 

 females from the same neighbourhood as the two new species of 

 Aganippe, which I call, after the locality, Blakistonia. 



It difiers from Aganip)2^e in the much squarer eye-area ; the 

 rear side eyes are lai-ger than any of the others. The lip is as long 

 as broad, furnished with short, stout, unusually tapering spinules ; 



9* 



