chamberlin: new spiders of the family aviculariidae. 45 



black; a longitudinal area extending caudad three fourths of the length 

 and somewhat constricted near middle with but few bristles, this area 

 being left thus almost clear black, while bordering it and on sides of 

 abdomen long brick-red bristles are densely arranged and conceal 

 the black of the shorter pubescence; similar but shorter brick-red 

 hairs over ventral surface. 



Ocular area wider than long in ratio 36: 19; the two eye-rows equal 

 in length. Anterior row of eyes viewed from in front strongly pro- 

 curved, a line tangent to the lower edges of the medians passing well 

 above the laterals; viewed from above the row is very weakly pro- 

 curved, a line tangent to anterior edges of the medians passing well 

 in front of the middle of surface of the laterals. Anterior median 

 eyes larger than the laterals in about ratio 13: 11; not quite two 

 thirds their diameter apart and scarcely more than one third their 

 diameter from the laterals. Posterior lateral eyes equal in long 

 diameter to the anterior laterals from which they are separated by a 

 distance equal to their radius. Posterior median eyes with diameter 

 smaller than that of the laterals in ratio 9: 11; but little elongate; 

 closer to laterals then to anterior medians. 



Tibia I in male equal to the metatarsus or scarcely exceeding it. 

 Outer or inferior process of tibia curved dorsad and at tip a little 

 mesad, twice as long as the superior spur which bears a stout spine 

 appressed to its ectal edge. 



Patellae III and IV unarmed. 



Tibia of male palpus unarmed with spines. Stylus of bulb of palpal 

 organ bent at base at right angles to the long axis of the bulb; at base 

 as broad as contiguous part of bulb; compressed, gradually narrowing 

 distad; toward distal end raised into a longitudinal median keel on 

 its ectal surface, the mesal surface being correspondingly grooved; 

 in anterior view the spine distad of the middle bends abruptly ectad 

 and then more ventrad at the very tip which is acute. 



Male (type). Length. — 25 mm. 



Cephalothorax : length, 11 mm.; width, 10.1 mm. 



Leg IV 11.8 14.7 12 5.1 43.6 



