66 



U.S. NATIONAL MUSEUM BULLETIN 260 



scarcely expanded, beveled anteriorly, coxa 4 with posteroventral lobe 

 narrow, evenly subrounded posteriorly, slightly deeper (dorsoven- 

 trally) and more quadrate in juvenile than in adult; coxa 6 with sub- 

 quadrate, medium-sized posteroventral lobe ; articles 5 and 6 of gnatho- 

 pod 1 equal to each other in length, posterior lobe of article 5 broadly 

 truncated, distally produced as small lobule, better developed in juve- 

 nile than in adult ; article 6 not tapering distally ; article 5 of gnatho- 

 pod 2 very stout and short, posterior edge hemispherical, article 6 



Figure 27. — Orchomene tabasco, new species, holotype, female, 7.0 mm, 7229: a, lateral 

 aspect; b-j, pereopods^l,2,3,4,5; g,h, gnathopods 1,2; j-/, uropods 1,2,3 (3 enlarged); m, 

 outer lobe of maxilla 1. 



