1877.] REV. O. p. CAMBRIDGE ON NEW AHANEIDEA. 575 



fore ones, being also separated from each other by two diameters, 

 the distance from each to the eye of the hinder row on its side 

 being somewhat greater than this. The tubercles, at the extremity 

 of which the foremost eyes of the outer quadrangle are placed, are 

 directed strongly outwards and downwards. 



The legs are brown, slightly tinged with yellow, and furnished 

 with hairs and a few short spines. The calamistra on the metatarsi 

 of the fourth pair begii) close to the hinder extremity of the joint, 

 rather on the inner side, and continue along it for about one third 

 of its length ; the terminal tarsal joint of the first pair is less than 

 a fourth of the length of the normal joint. 



The palpi are similar to the legs in colour and amiulation. 



TViQj'alces are long, strong, perpendicular, and divergent, and of a 

 dark, slightly yellowish brown colour. 



The maxillcB and labium are of a similar hue, the apex of the 

 latter and the inner sides of the former being of a pale whitish 

 colour. The maxillae are also rather closely fringed with hairs on 

 their inner sides and at their extremities. 



The sternum is of a dark brown and dull orange-yellowish hue 

 mixed. 



The abdomen was much shrunken ; but its form is apparently 

 elongate-oval, truncated in front, broad across the middle, where 

 there is a strong somewhat conically pointed prominence on each 

 side. It is clothed with short hairs ; and the femoral hue is a 

 mixture of brown-grey and reddish-yellow. The lateral prominences 

 are joined by a somewhat raised transverse curved ridge clothed with 

 grey hairs, the colour of the abdomen in front of the ridge being 

 dark reddish yellow-brown ; and extending from it to the spinners 

 is a broad dentated paler yellow-brown band. 



A single example of this very interesting and important S{)ider 

 was received, among numerous examples of other groups, from 

 Rockhamptop, Australia, through Mr. E. W. Janson, in the present 

 year (1877). The relation of this Spider to Dinopis and Menneus 

 is noted above. 



Fam. Salticides. 

 Gen. nov. Athamas. 



This genus is closely allied to Lijssomanes, Hentz, as well as to 

 Jelskia, Tacz. It differs, however, from both in the shortness of 

 the cephalothorax and also of the abdomen. From Lyssomanes, 

 Hentz, it differs in the superior and inferior spinners being of equal 

 length, whereas in that genus those of the superior pair are much 

 longer, slender, and three-jointed. 



Cephalothorax short, massive, quadrate, very convex above ; the 

 sides and hinder slope almost vertical. 



Eyes very unequal in size, disposed in four transverse lines of two 

 each, and almost of the same length. 



Legs rather slender, and moderately long ; those of the first pair 

 longest, and of the second pair shortest. 



