PLATE LXII. 



Fig. 1. ACTINOMETRA QUADRATA, U. Sp. 



Diam. Page 

 Fig. 1. Dorsal aspect. . . . . . . .x4331 



Figs. 2-4. ACTINOMETRA FIMBRIATA, Lam., sp. 



Fig. 2. Ventral aspect of an unusually symmetrical disk, . . x 3 319 



[The arrow indicates the line of the antero-posterior axis.] 



Fig. 3. Dorsal aspect, . . . . . . .x3317 



Fig. 4. A more normal disk, . . . . . . x 3 319 



