38 TULLGREN, SPIDERS COLLECTED IN SOUTH-CHILE BY P. DUSEN. 



much more long than broad (by Gnolus it commonly is about 

 as broad as long or a little more broad than long) and by 

 having tlie anterior lateral eyes much larger than the pos- 

 terior ones (by Gnolus and Oarces all eyes are nearly equal 

 in size). 



The chelieeres are by Gnolus as well as by Oarces com- 

 paratively short and thick, very convex on the front-side, 

 with nearly straight and parallel side-contours. The claw is 

 very broad at the base and strongly curved. The inner 

 margin of the claw-furrow has no or some very small teeth. 

 On the contrary the outer one has a more characteristical 

 armature, which may distinctly prove an afRnity with Oarces 

 absolutely prohibiting to place these two genus within difFe- 

 rent families. An examination of the exteriör margin by 

 Gnolus spiculator (Xic.) (Pl. V, fig. 1) shows the following 

 facts. Along the side of the clasped claw is a somewhat 

 elevated chitinous edge in length about a third of the length 

 of the claw. On this are six long and strong a little curved 

 bristles, all arranged in a row. Nearer the apex of the claw 

 are three teeth, of which the middle-one is the largest. A 

 little above this row of teeth is a second row of six long 

 bristles. It is to observe that in the iirst row the bristles 

 have the intervals equal in length and that the middle ones 

 are the stoutest; in the second row the interval between the 

 first and the second bristle is longer than those between the 

 other bristles, which have the intervals about equal in length. 

 Now if we examine a chelicer of Gnolus augulifrons Sim. we 

 find that the first row of bristles (there are seven on the 

 examined specimen) has the first one continally fine and 

 bristle-like but the others are more or less spiniformed. This 

 species has only one but a large tooth. The second row of 

 bristles has not been changed (conf . Pl. V, fig. 2). 



If at last we compare with these two examples the che- 

 licer of Oarces reticulatus (Nic.) (conf. Pl. V, fig. 3) we find 

 here perfectly the same arrangement. In the first row the 

 first bristle is still a long, at the base a little thickened 

 bristle, the second is spiniformed, at the apex fine and slender, 

 but the other five have been transformed into veritable spi- 

 nes, of which the first are the longest. The tooth is here 

 very small. Consequently in the same proportion as the 

 bristles have been transformed into spines the armature of 



