Zool.— Vol. I.] BANKS— MEXICAN ARACHN1DA. 277 



projection on the tibia of the palpus is not near as much 

 widened at tip. They have the characteristic spur on the 

 hind femur. 



255. Dolomedes minor, sp. nov. 

 Plate XVII, Fig. 6. 



Length 9 14 mm.; ceph. 6 mm. long, broad 5 mm.; femur I 8.5 mm. 

 Cephalothorax pale yellow-brown, darker above and on the margin, a narrow 

 white stripe each side from anterior to posterior margin, a white spot in mid- 

 dle of clypeus, a pale line from groove to P. M. E., and lines behind the 

 P. S. E. ; mandibles pale yellowish, clothed with long white hair; sternum 

 pale, indistinctly darker on the sides. Legs pale yellow-brown, darker to- 

 ward tips; the femora show indistinct darker bands above. Abdomen light 

 brown, with a broad dark brown stripe above, narrow and indented toward 

 the tip, its base containing a pale spear-mark. A. M. E. larger than A. S. E. ; 

 P. S. E. scarcely larger than P. M. E. Legs long and slender; four pairs of 

 long spines under the anterior tibiae and a short pair at tip. Abdomen de- 

 pressed, once and three-fourths as long as broad, rather truncate at the base. 

 The t is smaller than the 9, 10 mm. long, with a much narrower abdomen, 

 paler and proportionally longer legs. 



Many specimens from San Jose del Cabo, Guaymas; 

 Sierra San Lazaro, Sept. ; and Tepic, Oct. 



CTENID/E. 



256. Ctenus hibernalis Hcntz. — A few from Minititlan, 

 Orizaba, and La Chuparosa. 



257. Ctenus punctulatus Hentz. — A few from Tepic in 



Nov. 



258. Ctenus sp.? — A large female (not quite adult) 

 from Minititlan differs from either of the above species. 



259. Acanthoctenus spinigerus Keys. — Several speci- 

 mens from Minititlan, Orizaba, and Mexico City. 



