52 



U.S. NATIONAL MUSEUM BULLETIN 2 60 



Figure 21. — Aristias expers, new species, holotype, male, 5.0 mm, 7231: a, lateral aspect; 

 h, mandibular palp; c,d, maxillae 1, 2; e, telson; /, palp of maxilla 1; g, gnathopod 1; 

 h, epistome-labrum complex, left side; i,j, gnathopod 2; k-m, pereopods 3,4,5, n-p, uropods 

 1,2,3; q, maxilliped; r, lower lip. 



