300 Wisco7isin Academy of Sciences, Arts, and Letters. 



middle eyes are subtoucliing, the lateral a little separated f rora 

 them. The second ro\v is halfway between the first and the 

 third, and the third is much narrower than the cej^halothorax at 

 that place. 



We have only the type, from ^lurray Island, sent to us by Mr. 

 Workman. 



Parnaenus Peckham, 1896. 



Attidae of Central America, Occ. Pap. Xat. Hist. Soc. of Wis- 

 consin, \o\. 3, Xo. 1, p. 37, Plate XXV, figs. 2-2c. 



The characteristic thing about this genus is that the front part 

 of the cephalothorax is widely swollen, so that the greatest width 

 is just behind the second row of eyes, this peculiarity being as 

 marked in the female, at least in the type species, as in the male. 

 Of other genera ^vhich resemble it in this respect Thyene is 

 much smaller and is found in another part of the world, Hyllus 

 has a differently shaped cephalothorax, with a high raised ceph- 

 alic plate, and Zenodoriis has the quadrangle of the eyes wdder 

 in front. Parnaenus is found in Texas, Mexico, Central x\'mer- 

 ica and South America. The sj^iders are large and handsome, 

 the males being darker colored than the females, and, usually, 

 having their first legs ornamented wdth fringes of hair. 



The cephalothorax is high and massive, and when looked at 

 from in front the sides are seen to bulge out on each side of the 

 first row of eyes. The cephalic part is inclined. Behind the 

 dorsal eyes is a depression and then a slight hump, from which 

 the thorax falls in one slope to the margin. The lower outline 

 of the sides is not far from circular, but there is a distinct bulge 

 just behind the first row of eyes where the cephalothorax is 

 widest. Thev round out widelv from above downward so that 

 although the dorsal eyes are on the sides, they form a row 

 ^vhich is much narrower than the cephalothorax at that place. 

 The quadrangle of the eyes is from slightly to plainly wider be- 

 hind than in front, is barely one-fourth wider than long, and 

 occupies about two-fifths of the cephalothorax. The first row is 

 curved, the middle eyes being slightly separated, wdiile the lateral 

 are placed further back, with a distinct Si3ace betw^een them and 



