Genera of the Family Attidce. 309 



Eyes of the face very unequal, forming a straight or almost straight line; 

 the middle touchiag, the lateral well separated. Dorsal eyes as 

 large as the lateral, equiUy far apart, quadrangle scarcely a quarter 

 wider than long. Dorsal eyes nearer one another than the lateral 

 border j . 



Sternum almost rounded, wider than the intermediate coxae. Anterior 

 coxae sepa-ated by at least the width of the lip. 



Falces ( S ) much longer than the face, vertical, parallel, a little diverging 

 only at the extremity, cylindrical, not ridged. 



Palpus ( $ ) short, resembling that of Heliophanus except the femar which 

 is unarmed. 



Legs 1, 4, 3, 2; the first and second pairs a little more robust; tibia of the 

 first longer than patella, these two articulations at least as long as 

 the cephalothorax. Tibia and patella of the fourth much longe'^ 

 than tibia and patella of the third; tarsus and metatarsus, male, as 

 long as patella and tibia. Posterior legs having only very few spines 

 a terminal circle only on the metatarsus (sometimes however a 

 pair of median spines on that articulation). 

 In the species placed by Thorell in this genus (Stddi Ragni Malesi e 



Papuan!, Ill, pp. 467-492) the legs vary as follows: ( <5 ) 2, 1, 4, 3; 1, 4, 3, 3; 



4, 3, 1, 2; 4, 1, 3, 2; (?) 4, 3, 1, a. The firrt formula, 2, 1, 4, 3, makes the 

 second leg the longest. Simon in liis Arachnide^ de France, III, p. 1, gives 

 as one of the characteristics of the family Attide, " 2d -pair of legs never 

 the longest." We flad tin variation in the clypeus of Thorell's species to 

 run from scarcely i to about i the height of the lage middle eyes. 



OPISTHONCUS L. Koch. 1880. 



Opisthoneus L. Koch, Arachniden Australiens, p. 1184. 



Cephalothorax longer thau wide, high, declining toward the posterior, sides 

 moiei'ately rounded, cephalic part slightly contracted in front, hav- 

 ing a smoo h, low protuberance, between the third row of eyes, more 

 or less prominently adorned. 



Chjpeus very low. 



Quadrangle of eyes wider than long, behin i and in front equally wide, or 

 behind a little wider. First row of eyes almost straight or slightly 

 curved, middle eyes close to the lower margin of the clypeus, 

 close to each other, and moderately distant from the lateral. 

 Second row of eyes smallest and from the lateral eyes of the first 

 row less distant than from the eyes of the third row, and placed 

 either not high r, or only a little higher than these; eyes of the third 

 row, more widely separated from each other tha^. from the margin 

 of the cephalothorax. 



Sternum long, contracted. 



