20 



U.S. NATIONAL MUSEUM BULLETIN 2 60 



anteriorly truncated; distal margins of article 1 of antenna 1 with 

 three cusps, of article 2 with two cusps, accessory fiagellum minute, 

 barrel shaped, uniarticulate ; mouthparts similar to those of Rhacho- 

 tropls cervus J. L. Barnard (1957a) but mandibular palp article 3 

 shorter than article 2 and setose only apically, inner lobe of maxilla 2 

 slightly more slender ; coxa 1 broadly and bluntly extended anteriorly, 



q -—^ J 



Figure 7. — Rhachutropis multesimus, new species, holotype, ?sex, 3.8 mm, 7229: a, head, 

 left side (LL=lateral lobe, L = labrum, S = attachment of antenna \);b, pleon ; c, coxa 4; 

 d, pereonite 7, left side: ej, gnathopods 1,2; g-i, pereopods 1,3,4, left; /, pereopod 5; 

 right; k-m, uropods 1,2,3 (dotted areas reconstructed); n, telson; o, peduncle of left 

 antenna 2; p, mandibular palp; q, antenna 1, left medial. 



