6 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 93 



as long as wide; merus about four-sevenths the length of carpus; 

 ischium a little longer than merus and about two-thirds the length of 

 carpus. 



Ischium granulated with low, rounded, " pearly " granules on both 

 faces, more sparsely on outer than inner faces, forming a denticulated 

 inferior margin ; upper margin evenly concave, longitudinally deeply 

 grooved ; upper part of outer face of joint, including outer ridge, 

 forming dorsal groove without granules, smooth and shining; inner 

 face of ischium more heavily granulated than outer ; just before the 

 middle of its length there is a long, prominent, well-granulated tooth 

 on the lower margin of the ischium, a tooth about as long as the 

 ischium is wide. 



Upper margin of merus unevenly and shallowly concave in lateral 

 view ; at about the posterior third of its ventral margin is a low granu- 

 lated tooth, appearing to be made up of sharper, more prominent and 

 more crowded granules than those ornamenting the sides of the 

 ischium ; upper border longitudinally grooved like ischium ; outer ridge 

 forming groove also very smooth. 



The carpus is approximately parallel-margined, though finding its 

 greatest width at about the distal end of the proximal three-sevenths ; 

 it is smooth and shining on inner and outer faces but finely denticulate 

 on the upper margin for the greater part of its length, the denticles 

 becoming obsolescent close to its posterior extremity ; lower margin of 

 carpus keeled, keel less conspicuous and more or less replaced by 

 rather widely separated denticles or granules in anterior four-sevenths 

 and also obscurely so at the hinder angle. 



Palm, like carpus, smooth and shining on lateral faces, upper margin 

 on inside very finely denticulate, lower keeled, keel smooth ; on either 

 side of keel there are tufts of long hairs, toward lower edge of palm 

 the hair tufts are roughly alternate on either side of this keel ; along 

 the outer side of the keel from proximal end to tip of fixed finger there 

 may be counted about eight tufts, on inner side eleven, the last five of 

 which are more on the " ventral " surface of the finger, for here the 

 keel seems to become less distinct anteriorly and the finger is a bit 

 flattened below on the inner side of the palm : the keel of the lower 

 margin is paralleled by a row of denticles for a little more than its 

 distal half, denticles disappearing on the inner, lower margin of the 

 finger where a blunt keel takes their place ; the last hair tuft just below 

 the extreme tip of the movable finger is elongate and more bushy than 

 the other tufts. 



The movable finger for the greater part is gently bowed, but at the 

 far end is abruptly hooked ; below, it is armed proximally with a 



