1901.] ATJSTRALIAIf Si^IDBRS. 263 



row recurved, laterals, the diameters of, or very slightly longer 

 than front middle, rear middle nearly as large. Front and rear 

 laterals clearly separated. 



Sternum nearly round, convex, furnished with upstanding 

 bristles ; sigillae rather round, marginal, and moderate in size. 



Lip small, only slightly broader than long, hollowed in front ; 

 no spines. Maxillse straight in front, round at heel, thence 

 hollowed round lip, the whole base covered with thick club-shaped 

 spines. 



The falx-sheath has 8 large teeth on the inner side and 5 small 

 intermediate at the lower end. 



The male has a powerful lateral spur springing from an enlarge- 

 ment in the middle of tibia i., but none at the apex. 



The genital bulb is a long pear-shape, with a short stylus not 

 more than one-fourth of its length. The bulb springs from the 

 end of a specially long metatarsal joint of the palp. 



Measurements in millimetres. 



Female. 

 Long. Broad. 



Cephalothorax .... 6 4i 



Abdomen 7 4 



Superior spinnerets Ij, 1, 11= 3|. 



Pat. & Metat. 

 Coxa. Tr. &fem. tib. &tars. 

 Legs 1. 2,i 41 5 4 = 15| 



2. 2 4 4 H = 13| 



3. I4 ^2 % ^2 — ^^4" 



4. 2i 41 5 5 = 16| 

 Palpi 1| 31 3^ If = 101 



Male. 

 Long. Broad. 



Cephalothorax .... 6 4| 



Abdomen 6 d^ 



Superior spinnerets 1^, 1, 1^=4. 



Pat. & Metat. 

 Coxa. Tr. & fern. tib. & tars. 

 Legs 1. 21 51 61 51 = 20 



2. 21 41 5 5 = 161 



3. 2 41 4^ 5 = 15| 



4. 21 51 5f 6| = 20^ 

 Palpi 2 41 41 11 = 12|- 



Locality. Macedon, Victoria. 



Chenistonia major, n. sp. (Text-fig. 36.) 



Besides its much larger size, though similar in colouring, this 

 differs from 0. maculata in the pattern of the upper part of the 

 abdomen having a black median stripe with about 5 pairs of mottly 

 diagonal side stripes on a buS ground ; underneath all yellow. 



