Clark. — The Echinodeims of Peru. 



PLATE 9. 



Fig. 1. Amphiodia chileneis. Calbuco, Chile. Lower surface. X 1.3. 



Fig. 2. Amphipholis pugetana. San Lorenzo Island, Peru. Upper surface. X 2.5. 



Fig. 3. Opliiactis kroyeri. Talcahuano, Chile. Upper surface. X 1.3. 



Fig. 4. Ophiothrix magnifica. Payta, Peru. Upper surface. X 1.3. 



