698 BULLETIN 54, TTNITED STATES NATIONAL MUSEUM. 



esses. The perjeopods are similar in general to one another, differing 

 only in the arrangement and strength of the spines. 



Fig. 739.— Haplophthalmus putfais (After Hay), a, Dorsal view of male, b, Right mandible. 



r, Tip OF LEFT MANDIBLE, rf, FiRST MAXILLA, e, MAXILLIPED. /, UPPEE LIP. fir, SECOND ANTENNA. 



ii, First antenna. ;, First leg. j. First pleopod. k. Second pleopod. I, Third pleopod. to, 

 Fourth pleopod. m, Fifth pleopod. o. Uropod. 



