20 



BULLETIN 54, UNITED STATES NATIONAL MUSEUM. 



one-third of the length of metasome, and armed on each side with a 

 minute defiexed denticle. Body of male much broader than in female, 

 being scarcely more than five times as long as it is broad; cephalosome 

 rather broad in proportion to its length; all free segments both of 

 mesosome and metasome of about equal length, the terminal one nar- 

 rowly produced at the tip. Superior antennw in female gradually 



Fig. 22.— Lei'tognathia longiremis (After Sars). a, First leg of female. 6, Second antenna 



OF FEMALE. (', LATERAL VIEW OF FEMALE, rf, DORSAL VIEW OF FEMALE. €, FIRST ANTENNA OF 



FEMALE. /, Seventh leg of female, g, Second leg of female, -h, Maxillipeds. /, Anterior 



(FIRST OR INNER) MAXILLA, j, UROPOD OF FEMALE, k, MANDIBLE (RIGHT). I, LEFT MANDIBLE. 

 m, PlEOPOD of FEMALE. M, FiRST LEG OF MALE. O, FIRST ANTENNA OF MALE, p, DORSAL VIEW OF 



MALE, q, Lateral view of male, r, Second leg of male, a-, Uropod of male, i, Pleopod 

 OF MALE. M, Second antenna of male, v, Seventh leg of male. 



tapering distally, basal joint about equaling in length the other three 

 combined, second joint shorter than the outer two taken together; 

 those in male attaining in length one-fourth of the body, the first two 

 joints of the peduncle large and expanded, tiagellum about the length 

 of the peduncle, and having the two outer joints much longer than the 



