496 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. XXXVII. 



the two middle ones being farther apart and longer than those on 

 the anterior portion of the head. The eyes are small, composite, and 

 situated close to the lateral margin. The first pair of antennae is 

 inconspicuous and rudimentary. The second pair has the first arti- 

 cle of the peduncle short; the second is much longer; the third is 

 not so long as the second; the fourth is twice as long as the third; 

 the fifth is a little longer than the fourth; the flagellum consists of 

 two articles, the first of which is minute, the second long and tapering 

 and furnished with a long spine at the tip. 



The first segment of the thorax is furnished with ten long spines 

 and two small ones. There are two long spines close together on 

 the anterior portion, one on either side of the median line, six long 

 spines on the middle portion, three on either side of the median 



line, and two long ones on the posterior por- 

 tion, close together, one on either side of the 

 median line. There are two short spines 

 just anterior to the two long spines on the 

 posterior portion. The lateral parts of the 

 first segment are produced anteriorly and 

 posteriorly into a wide plate on either side. 

 The second segment is furnished with eight 

 long spines and two short ones. Six of these 

 long ones are arranged in a transverse row 

 about the middle, three on either side of 

 the median line, and two are placed near 

 the posterior margin, close together, one on 

 either side of the median line. The two 

 small spines are placed just in front of the 

 two long ones near the posterior margin. 

 In the following five segments the spines 

 are the same in number and arranged in 

 the same manner as in the second segment. The lateral parts of all 

 six segments are produced into long narrow spine-like processes. 

 Ei)imera are not distinct on any of the segments either on the dorsal 

 or ventral side. 



The first two segments of the abdomen are short and unarmed; 

 their lateral parts are covered by the last thoracic segment; the fol- 

 lowing three segments are furnished each with two spines close 

 together, one on either side of the median line, those on the third and 

 fourth segments being short and those on the fifth segment long. 

 The lateral parts of the third, fourth, and fifth segments are pro- 

 duced in long, narrow tapering processes. The sixth or terminal 

 segment is triangular, broad at the base and with the posterior margin 

 acutely produced in the middle. The basal, portion of the segment 



GLOBAKMADILLO AKMATUS (DIA- 

 GRAMMATIC). 



