Zool.-Vol. 1.1 BANKS— MEXICAN ARACHNIDA. 265 



femur II) dotted with brown, a large spot at end of tibia;, and a narrow band 

 at the tip of the metatarsi; usual black spot on patella IV, and a line on 

 tibia, both margined in front with white; sternum pale, dotted with brown. 

 Abdomen with a pale grayish dentated stripe in the middle above, and on 

 the sides brown, below white, with a broad brown stripe in the middle, a 

 short dark brown stripe reaching forward each side from near the spinnerets. 

 P. M. E. much larger and farther apart than the A. M. E., the latter about as 

 far from the A. S. E. as from each other; three large bristles each side on the 

 anterior margin and one in the middle. Abdomen broadest behind the 

 middle, pointed at tip; a well-developed cone above, and eight little eleva- 

 tions as follows: two before the middle, two just behind the middle, and four 

 in a curved row before the hump. 



One female; El Taste. 



216. Tmarsus, sp.? — Young specimen from Tepic, Oct. 

 217. Thanatus peninsulanus, sp. now 



Plate XVI, Fig. ii. 



Length $ 8 mm.; ceph. 2.5 mm. long, broad 2.6 mm.; femur I 3 mm. S 

 5.5 mm., femur 1 3.8 mm. long. Specimens often much larger, especially the ab- 

 domen. Cephalothorax pale yellowish, with a more or less distinct brownish 

 stripe each side; mandibles, legs, and sternum pale, dotted with brown. 

 Abdomen pale, a basal brown spear-mark, followed by two converging series 

 of brown spots, sides dotted; venter with four brown lines; all markings 

 variable in distinctness, sometimes running together, especially the legs, with 

 browner lines and spots. A. M. E. fully as large as A. S. E., and their diam- 

 eter apart, scarcely closer to the S. E.; eyes of posterior row equal and at 

 about equal distances. 



Many specimens from San Jose del Cabo. 



218. Ebo mexicana, sp. nov. 



Plate XVI, Fig. 9. 



Length 4 mm.; ceph. 1.5 mm, long, broad 1.5 mm.; femur I 1.8 mm., femur 

 II 3.2 mm. long. Cephalothorax pale, with a large brown spot each side, not 

 reaching behind to posterior margin, but extending down on the clypeus, 

 each spot incloses a few white dots; a small median posterior spot, and two 

 elongate spots behind the P. M. E. brown; mandibles pale, a brown spot at 

 base and at tip. Legs pale, with brown bands on the middle and tip of 

 femora, tip of patellar, base and tip of tibiae, and base of metatarsi; on femur 



