10 MB. AND MRS. PECKHAM ON [May 7, 



thorax at that place. The sides of the eepbalothorax are vertical, 

 and are nearly parallel, widening a little in the middle. The 

 quadrangle of the eyes is plainly wider in front than behind, is 

 one-fifth wider than long, and occupies one-half of the eepbalo- 

 thorax. 



In our specimen the hairs are all rubbed from the abdomen. 

 The cephalothorax is blackish, with red hairs on the eye-region, a 

 white band down the middle of the thoracic slope, and white bands 

 low on the sides. Under alcohol the pattern appears as in the 

 drawing. The palpus is blackish, with a fringe of very long white 

 hairs on each side, extending to the end of the tarsus. The tibia 

 is flattened. The first leg has the femur and tibia reddish, but 

 otherwise the legs are pale, with many fine black spines. The 

 falces are vertical and moderately stout. This species differs from 

 C. grisea in having no apophyses on the falces, in the maxillae, 

 which are rounded and short, and in having the patella of the 

 palpus shorter than the tibia, instead of much longer. 



We have a single male of this species. 



Saitis (?) inutilis, n. sp. (Plate III. figs. 4-4 b.) 



S. Length 3*5 mm. Legs 4 3 2 1, all slender, and decreasing 

 very gradually in length from the fourth to the first. Second 

 longer than first by tarsus. 



The cephalothorax is rather high, and falls distinctly, in both 

 directions, from the dorsal eyes. Its widest point is plainly at 

 the front end, the sides contracting gradually behind. The quad- 

 rangle of the eyes occupies about one-half of the cephalothorax. 

 It is only one-fifth wider than long, and is a very little wider in 

 front than behind. The anterior eyes are all large, and are placed 

 close together in a plainly curved row, the middle being less than 

 twice as large as the lateral. The eyes of the second row are 

 about halfway between the lateral and the dorsal, and the third 

 row is as wide as the cephalothorax at that place. 



When under alcohol the cephalothorax is brown above, with a 

 pale scalloped band down the middle, and is pale on the sides. 

 The abdomen has the sides brown speckled with white, and a pale 

 central band, which has an enlargement at the middle point, and 

 which is crossed by a number of short pale bars, which form 

 chevrons. In one specimen there is, on each of the anterior sides, 

 a pale spot, and further back there is a short curved pale band, of 

 which only the extremities are visible from above. When dry the 

 upper part of the cephalothorax is seen to be covered with red, 

 and the sides with white hairs. The red hairs grow a little longer 

 above the eyes of the first row, and below them the clypeus is 

 covered with white or yellowish-white hairs. On the abdomen 

 the dark parts are covered with red, and the pale with white hairs. 

 The legs are brown, flecked with pale, the first and second being 

 darker than the third and fourth. The palpus is brown, with 

 rather long white hairs on the tibia and tarsus. The falces are 

 small, vertical, and brown. 



We have two males of this spider. 



