100 



U.S. NATIONAL MUSEUM BULLETIN 29 5 



Figure 52. — Bythocypris mozambiquensis, n. sp. : Variant A, female USNM 121606. 

 A, Left valve exterior, X 49; B, antenna, X 152; C, mandible, X 301. 



Variant C: USNM 121610, left valve, length 1.40 mm, height 0.77 

 mm. USNM 121611, right valve, length 1.45 mm, height 0.83. 



Variant D: Right valve USNM 121612, length 1.75 mm, height 

 0.92 mm. Left valve fragment USNM 121613, length 1.76 mm. 



Variant E: Right valve USNM 121614, length 1.42 mm, height 



Left valve USNM 121615, length 1.47 mm, height 



0.64 mm. 



Variant F 

 0.72 mm. 



Affinities. — There is an extraordinary amount of variation 

 among forms assignable to this species, but the differences seem to be 

 very minor changes in proportions and size that are not sufficiently 



