252 ME. C. J. WITH ON SOUTH-AMERICAN CHELIFERIN^ 



b\ If the chela is 3 as long as wide, the femur is 2-2 

 as long as wide. 

 «". Abdominal tergites with only 8 hairs along 

 hindmost margin and 2 (lateral) in front 

 of row. Tlie chela is 3 as long as wide ; 

 femur 2"2 as long as wide ; almost smooth 

 hand I'l as deep as wide and 1"3 as long as 



finger 30. Ch. nitidimanus Ell. 



b". Abdominal tergites with more than 8 hairs 



along hindmost margin and generally 4 in 



front of row. Hand more or less distinctly 



granular. 



a". Femur with long strongly clavate hairs 



anteriorly. Hand wider than deep. 



«". Palps indistinctly granular. Femur, 



which is 2"3 as long as wide, is posteriorly 



beyond stalk almost straight. Cephalo- 



thorax and abdomen unicolor. Small 



species 22. Ch. antillarum, sp. n. 



b''\ Palps coarsely granular. Femur, which is 

 2'7 as long as wide, is posteriorly in 

 middle somewhat concave. Second tho- 

 racic tergite and abdomen with white 



spots 25. Ch. albomaculatus ~Qb1z. 



6'\ Femur with obtuse or moderately clavate 

 hairs anteriorly. 

 a". Fingers shorter than hand deep. 



a}''. Second thoracic and abdominal tergites 

 without white spots. Cephalothorax 



with single transverse groove .... 23. Ch. subrudis Balz. 

 6^'. Second thoracic and abdominal tergites 

 with white spots. Cephalothorax with 



two transverse grooves 24. Ch. bicolor Balz. 



6'\ Fingers distinctly longer than hand deep. 

 a'". Femur about 3"5 as long as wide ; hand 

 about 1-2 as long as finger ; femur at 

 least anteriorly distinctly granular. 

 Two transverse grooves. 

 «". Palps coarsely granular all over, with 

 moderately clavate hairs ; hand at 

 least as deep as wide. Second thoracic 

 tergite with dark or white spot. 

 «'°. Femur 2"5 as long as wide, tibia 

 2*2, and chela 2'8. Second thoracic 

 tergite with dark median spot . . 26. Ch. crassimanus Balz. 



