PLATE XIX. 
Diam. 
Fig. 1. Pilumnoplax heterocliir (Studer), adult male, . x 4 
Fig. 1 a. Anterior view of the frontal region of the carapace, showing 
the form of the frontal lobes and orbits, &c., . .X 8 
Fig. 16. Exterior view of larger chelipede, . . .X 6 
Fig. lc. Exterior view of smaller chelipede, . . .X 6 
Fig. lcf. Post-abdomen of the male, . . . . x 8 
Fig. 2. Pilumnoplax abyssicola, n. sp., male example, 
Fig. 2 a. Anterior view of the frontal region of the carapace, showing 
the form of the front, orbits, &c., 
Fig. 26. Exterior view of larger chelipede, 
x nearly 3 
x 6 
x 4 
Fig. 3. Ceratoplax ciliata, Stimpson, female example, 
Fig. 3 a. Inferior view of the cervical region, showing the form of 
the inferior orbital margin, antennae, and exterior 
maxillipedes, . . . . . 
Fig. 36. Exterior view of a chelipede, . 
x about 5 
x 6 
x 5 
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