Pechliam — Spiders of the Family Attidae. 339 



patella. Tlie falces are vertical and rather stout, witli a few 

 white hairs or bristle's. The quadrangle of the eyes is widest in 

 front, and the second row is half way between the first and the 

 third. 



We have numerous examples from Port of Spain, Trinidad, 

 sent to us by Mr. Broadway. 



In distinguishing blandus from ylacatiis, we notice that in 

 placahis the first and second legs are relatively shorter. In 

 placatus the third leg is longer than the second by the tarsus 

 and nearly all of the metatarsus, while in hlandus it is longer by 

 scarcely more than the tarsus. 



Dynamius placatus, sp. nov. 



PI. XXV, figs. 11-llc; PI. XXVI, fig. 1. 



Length, «3 6-7 mm ; $ 7-8 mm. 



Legs, 6 34:12, ? 3412, first and second plainly the stoutest 



Our specimens have suffered much from rubbing. The ceph- 

 alic part is dark and iridescent ; the thoracic lighter, reddish 

 brown, vrith white bands around the sides. There are some 

 patches of light golden scales. On the clypeus and cheeks and 

 around the eyes of the first row are bright red hairs, the clypeus 

 having white hairs on the lower edge. The small vertical falces 

 have white bristles on the front surface. 



The ground color of the abdomen is black, and the markings 

 vary from white to light golden, and are formed by scales. On 

 the anterior part are two irregular spots, sometimes united tO' 

 form a band; behind the middle is a v/ide transverse band, in 

 which is sometimes seen a small dark triangular spot ; above the 

 spinnerets are two small spots, the inner sides of which touch a 

 slender central line which runs forward to the transverse band 

 mentioned before. This often gives a distinctly anchor-shaped 

 figure. The whole abdomen is thinly clothed with long, coarse, 

 white hairs. 



The legs are reddish brown, paler toward the ends. In the 

 male the tibial joint of the first and second legs shows beautiful,, 

 iridescent, violet reflections, which are also found less dis- 

 tinctly on the patella, and there are two fringes of black hairs, 

 one on the outer and one on the inner side of the tibia and meta- 

 tarsus of the first and second legs. 



