696 MESSES. G. W. AND B. G. PECKHAM ON [NoV. 21, 



no fringe of hairs on the underside. The spinnerets are long and 

 pale, the outer ones having a dark Ime along the external side. 



A common species. 



The two species of Cyhele may be distinguished from each other 

 by the following points : — In G. vincenti the thoracic part slants 

 steeply from the dorsal eyes, while in O. obscura it falls gradually at 

 hrst; in C. vincenti the falces of the male are oblique and diverging, 

 in 0. obscura vertical and parallel : and in 0. vincenti the palpus of 

 the male has the tarsus twice as long as the tibia and not much 

 longer than wide, while in 0. obscura it is three times as long as 

 the tibia and twice as long as wide, projecting for some distance 

 beyond the bulb. 



Ctbelb vincenti, sp. nov. (Plate LXI. figs. 4-4 d.) 



(S . Length 6. Length of cephalothorax 2-8 ; width of cephalo- 

 thorax 2. 



2 . Length 6-5, Length of cephalothorax 2'6 ; width of cephalo- 

 thorax 1*8. 



Legs, d 1, 4, 3, 2, ? 4, 3, 1, 2. The first leg is stouter than the 

 others and, in the male, is longer than the second by the meta- 

 tarsus and tarsus. 



The cephalothorax has its sides nearly vertical in front and 

 shghtly rounded out in the thoracic part ; it is widest, as well as 

 highest, at the dorsal eyes, and from this point it falls quite 

 steeply, the slope being sUghtly rounded out. The first row of 

 eyes is a little curved ; the lateral eyes of this row are relatively 

 a little smaller than those of obscura. The dorsal eyes are a little 

 larger than the lateral and are placed on the sides of the cephalo- 

 thorax, forming a row that is as wide as the cephalothorax at that 

 place. The clypeus is one-fourth as high as the middle eyes of the 

 first row. The patella and tibia of the male palpus are of the same 

 length, and taken together are shorter than the tarsus, which is 

 twice as long as wide ; the palpal tube is very long. The falces of 

 the male diverge widely and have long fangs ; they are vertical 

 and rather stout ; those of the female are short,'parallel, vertical, 

 and rather stout, with short fangs. The maxillas are not much 

 longer than the labium. The sternum is almost round. 



The markings vary considerably in different spiders of this 

 species, and some are much darker coloured than others. The 

 cephalothorax in the male is covered with brilliant red hair and 

 has a snowy white band on each side and another in the central 

 thoracic part. The abdomen is covered with a mixture of grey, 

 red, and tawny hairs ; around the anterior end is a curved white 

 band, and from this a central, longitudinal, white band extends 

 backward to about the middle of the dorsum. Sometimes a central 

 band of white figures appears on the posterior half, with two dark 

 rufous spots on each side. The clypeus has a fringe of white hairs 

 on the lower edge. The falces are brown. The legs are banded 

 with hghter and darker brown, the first and second being 

 somewhat darker than the third and fourth. The first leg has 



