No. 1.] ATTID.-E OF CENTRAL AMERICA. 87 



is straight, with the middle a very little more than twice the 

 lateral in size, all four close together. The second row is a lit- 

 tle nearer the third than the first. The third row is nearly as 

 wide as the cephalothorax at that place. The cephalothorax is 

 rather low. The abdomen is widest in front and tapers to the 

 extremit}^ 



This genus, from the long cephalic part and the conforma- 

 tion of the cephalothorax and abdomen, seems to belong to the 

 Homalattus Group, and yet it most closely resembles Sadala. In 

 Sadala, however, the cephalothorax is lower, with the cjuad- 

 rangle of the eyes occupying only two-fifths of its length, and 

 the middle eyes of the first row are two and one-half times as 

 large as the lateral. 



We have but one species. 



TULPIUS HILARUS, SP. NOV. 



Plate VI, figs. 10-lOa, and Plate VII, figs. 10-lOa. 



5 S . Length, 4. Length of cephalothorax, l.S ; width 

 of cephalothorax 1.3. 

 Legs, $ 143'2; ? (measured with difficulty and per- 

 haps incorrectly) 4132 ; the first pair much the 

 stoutest, and darker-colored than the others. 



The clypeus is about one-third as high as the large middle 

 eyes of the first row. The falces are vertical, square, and in the 

 male, are notched on the lower edge. (See figure.) 



The cephalothorax and palpi are dark brown or black. 

 The abdomen varies in color from light to dark brown. It has 

 a blackish streak down the middle and is encircled by a band 

 of white hairs. The spinnerets are black. The legs of the first 

 pair are dark brown, excepting the tarsi, which are yellow. 

 The others are pale yellow, the third and fourth having a black 

 line along the posterior side, which is best seen from below. 

 On the third leg this line is seen only on the patella and tibia, 

 but on the fourth it extends to the end of the tarsus. The 



