1909.] NATURAL SCIENCES OF PHILADELPHIA. 197 



the tip. Abdomen densely streaked with black, a larger median black 

 spot behind middle, and behind this the abdomen is pale with a few 

 triangular black spots near the spinnerets, venter black on base extend- 

 ing back each side, median area pale; tips of coxse black, sternum 

 mostly black, a pale median stripe and some spots each side; vulva 

 shows two plates each side similar to S. longipes, but farther apart, 

 and not narrowed at base. Cephalothorax rather longer than in many 

 species. Length 6.5 mm. 



Specimens from Tegas de Cartiigo (Tristan and Biolley), Tiribi (T.), 

 San Jose (T.), Guayabo (Alfaro), Turricares (T.), Cartago (Picado), 

 La Palma (T.), Surubres (B.), and Embouchure du Rio Jesus Maria 

 (Pac.) (B. and T.). 



DRASSIDJE. 

 Echemus tropicalis n. sp. 



Cephalothorax yellowish, A. M. E. on black spots; legs rather more 

 brownish on basal joints; abdomen brown, venter paler brown; 

 sternum and spinnerets yellowish. P. M. E. oval, about one diameter 

 apart, closer to oval P. S. E., which nearly touch A. S. E. ; A. M. E. 

 one diameter apart, closer to the A. S. E. Sternum one and one- 

 fourth times longer than broad, pointed behind. Legs rather long, 

 a couple of small spines under tibiae I and II, all femora with several 

 spines above. Readily distinguished from E. pedestris by the P. M. E. 

 well separated, and by the color of the legs, etc. Length 4.5 mm. 



From Chiral Paraiso, Costa Rica (Tristan and Biolley). 



CLUBIONIDiE. 

 Trachelas morosus n. sp. 



Cephalothorax, mandibles, and sternum red-brown; cephalothorax 

 granulate, sternum nearly smooth, maxillae without apical process, 

 rounded at tip. Legs yellowish brown, leg I more red-brown, espe- 

 cially at base; abdomen dark brown, hairy, without scutum. By 

 these characters it would be near the T. spirifer of the Biologia, 

 but differs at once in the shape of the style to the palpal bulb, which 

 here is short and stout; the tibial process is quite large and long. 

 Length 7 mm. 



One male from Aguas Caliente, Costa Rica (Picado). 



Trachelas bispinosus Cambridge. 



Biol. C. Am. Arachn. Aran., II, 79, 1899. 



La Palma; Tablazo; Santa Maria Dota; and Chiral Paraiso (B. 

 and T.). 



