24 PECKHAM. [Vol. 2, 



occupying two-fifths of cephalothorax. Anterior eyes in a 

 straight row, subtouching ; middle twice as large as lateral. 

 Clypeus only a line. Second row a little nearer the first than 

 the third row. Falces moderately long, horizontal, parallel, 

 very robust, flattened above and on inner faces, much 

 thickened on the outer sides, thickest in the middle ; looked at 

 from the side they appear semi-circular. Fang as long as falx. 

 Lip much longer than wide ; maxillae very long, excavated 

 within. Coxae i separated by nearly the width of the lip. 

 Sternum narrow, contracted behind. Pedicle not visible from 

 above. Abdomen cylindrical, with a scarcely perceptible con- 

 striction near the anterior end. Integument of abdomen 

 hardened. Tibia of palpus barely one-third as long as tarsus. 

 Color. Cephalothorax black, with some whitish hairs 

 around the eyes of the first row, and a band of orange-colored 

 hairs behind the dorsal eyes. Abdomen black, covered with 

 long, orange hairs. Legs with femoral joints blackish, except 

 those of the second, which are paler underneath, and the other 

 joints black, mingled with pale testaceous. Palpi and falces 

 dark brown. Under surface dark brown, except the coxse of 

 the first, second and fourth pairs of legs, which are pale. 



JJabitat. Madagascar. 



The greater size of simplex distinguishes it from both 

 .•augustus and electricus. It is also separated from electricus 

 by its dark color, and from augustus by the relative length of 

 the tibia and tarsus of the palpus. 



SALTICUS AUGUSTUS N. SP. 



PI. I., Fig. 5, male; .5a, variety of male having long 

 falces ; 5b and 5c, male palpus. 



S . Total length, 6 mm.; falces, max., 3 mm.; min., 2.4 

 mm. 

 Cephalothorax: Length, 2.5 mm.; width, 1.2 mm. 

 Legs, 4132 ; femur i enlarged. 

 1st leg longer than 2d by tarsus and metatarsus. 

 4th leg longer than 3d by tarsus and metatarsus. 

 Palpus not palette-.shaped, as is usual in Salticus. 



