No. 2.] SPIDERS OF THE MABFTCSA GROIT. 99 



bands of bright red. The posterior one of the iridescent bands 

 is extended backward, in the middle hne, to the spinnerets. 

 The cephalothorax of the female is brown, with a lighter spot 

 on the anterior thoracic part, and seems to have been covered 

 with iridescent violet scales. The palpi and the second, third 

 and fourth pairs of legs are light brown, the palpi having a 

 bunch of white hairs on the tarsus. The first legs are bright 

 brown, with some short, snow-white hairs. The abdomen is 

 like that of the male. 



We have one female from Santarem, Brazil, in the Smith 

 collection, and one male from Port of Spain, Trinidad, sent us 

 by Mr. Broadway. 



BAA^A SIMON. 

 Plate IX., Figs. 4—46. 

 The cephalothorax is moderately high. The cephalic part 

 rises very slightly to the dorsal eyes. The thoracic part is 

 separated from the cephalic by a deep groove, behind which it 

 is level for about one-fourth of its length, and then falls quite 

 steeply. The cephalothorax is about equally wide at the an- 

 terior and posterior ends, but is very much wider in the mid- 

 dle, the widest point being just behind the dorsal eyes; it is 

 about as wide as long. 



The quadrangle of the eyes is one-fourth wider than long, 

 is wider in front than behind, and occupies a little less than 

 one-half of the cephalothorax. The first row of eyes is bent ; 

 the eyes are all a little separated, the middle being twice as 

 large as the lateral. The second row of eyes is plainly nearer 

 the first than the third, and the third row is plainlj^ narrower 

 than the cephalothorax. The abdomen is narrow and small 

 — a little higher and wider in front than behind. 



Our only spider under this genus is a male of Bavia teri- 

 ceps, Simon, Ann. Soc. Entomol. de France, 1877, p. 61, from 

 Manilla. L. Koch described the same species from Australia, 

 under the name Acompse suavis. 



Bavia is related to Marptusa, Breda and Epinga, but the 

 width of the cephalothorax, in proportion to its length, sepa- 

 rates' it from all of these. 



