54 



U.S. NATIONAL MUSEUM BULLETIN 260 



spines demonstrate the true position of the lateral margin of the 

 appendage. 

 Material. — Station 7234, male, 3.4 mm. 



Figure 22. — Aristiopsis tacita J. L. Barnard, male, 3.4 mm, 7231: a, uropod 2; h, mandible; 

 c, articles 6,7 of gnathopod 2; d, pereopod 5; e, outer lobe of maxilla 1;/, epistome-labrum 

 complex, left side; g, mandibular molar; /;, maxilliped; i, coxa 1, medial view from left 

 aspect; j, maxilla 2. 



