238 



BULLETIN 54, UNITED STATES NATIONAL MUSEUM. 



the posterior margin of the head. The basal articles of the first pair 

 of antennae are adjacent on the ventral side. The articles of both 

 pairs of antenme are greatly dilated and flattened. The maxillipeds 

 have a palp of two articles. The palp of the mandibles is composed 



FIG. 241. MEINERTIA GAUDICHAUDII (AFTER SCHKEDTE AND MEINERT). a, ADULT FEMALE. 6, ADULT 

 FEMALE, c, LATERAL VIEW OF THORAX. (ENLARGED.) 



of three articles, the terminal one being very slender and minute. 

 The second maxillae terminate in two lobes furnished with small hooks. 

 The first segment of the thorax is longer than any of the others, 

 being 6 mm. in length; the second and fifth segments are subequal, 

 each being 4 mm. long; the third and fourth are each 5 mm. in length; 



FIG. 242. MEINERTIA GAUDICHAUDII. a, MAXILLIPED OF MALE, x 20. 6, MAXILLIPED OF FEMALE. 

 x 20. c, FIRST MAXILLA, x 39. 



the sixth segment is 3 mm. long; the seventh is 2 mm. long. The 

 antero-lateral angles of the first segment are narrow and acute and 

 are produced forward to about the middle of the head. The epimera 

 are distinctly separated on all the six following segments. They are 

 narrow, elongated plates, not extending quite to the posterior margins 

 of the segments. 



