700 MESSES. G. W. A>'D E. G. PECKHAM ox [IS'oV. 21, 



brouTi, with a pale heri-ing-bone stripe down the middle of the 

 dorsum and a good many white hairs on the sides. The legs and 

 palpi are light brown, the legs having some dark rings. The 

 falces are dark brown. The under surface is light brown. 



This spider is immature. It is not a very good Euophrys, but 

 as it is near that genus we put it there provisionally. 



CYDOifiA, gen. noY. 



The cephalothorai is low and is almost flat above. The 

 cephalic part is very shghtly inclined, and the thoracic part falls 

 scarcely at all in the anterior half and then slopes abruptly to the 

 margin. The sides are naiTowest in front ; they widen a little 

 just behind the dorsal eyes and then contract gradually as they 

 pass backward ; in the cephalic part they slant inward, but 

 in the thoracic part they are gently rounded. The quadrangle 

 of the eyes is wider behind than in front, is one-fifth wider 

 than long, and occupies one-half of the cephalothorax. The 

 four anterior eyes are placed close together in a. straight row, 

 the middle being nearly twice as large as the lateral. The second 

 row is nearer the first than the third row. The dorsal eyes are 

 fully as large as the lateral eyes of the first row and are placed on 

 the margin of the cephalothorax. The labium is longer than 

 \\ide. 



Cijdonia is somewhat like Epihlemnm, but differs from that 

 genus in that the quadrangle of the eyes is wider behind than in 

 front and occupies one half of the cephalothorax. 



Ctdoxia luteola, sp. nov. (Plate LXII. figs. 8-8 e.) 



(S . Length 3. Length of cephalothorax 1-5 ; width of cephalo- 

 thorax 1. 



2 . Length 3-8. Length of cephalothorax 1-5 ; width of cephalo- 

 thorax 1. 



Legs, (S $ , 4, 1, 3, 2. The first pair is much the stoutest in 

 both sexes, all the joints excepting the metatarsus and tarsus being 

 thickened. 



The clypeus is narrow. The falces are only moderately long 

 and stout ; in the male they diverge and are directed obliquely 

 for\\ard, the fang being as long as the falx ; in the female they are 

 vertical and parallel wit li the fang, short. The sternum is oblong. 

 The maxillse are rounded and are less than twice as long as 

 the labium. The abdomen is long in proportion to the cephalo- 

 thorax and is about twice as long as « ids. 



The cephalothorax is black in the cephahc region, shading into 

 rufous behind ; the upper sm'face is covered with bright yellow 

 hairs and there is a band of white hairs on each side. The 

 abdomen is light brown cohered with silvery down, and on each 

 side is a longitudinal white band. Touching these lateral bands 

 are two pairs of short white bands or spots, the first pair near the 

 middle and the second near the spinnerets. The first leg has the 



