Clark. — The Echinoderma of Peru. 



PLATE 9. 



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



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



Fig. 3. Ophiactis kroyeri. Talcaliuano, Cliile. Upper surface. X l.-l 



Fig. 4. Opiiiothrix magnlfica. I'ayta, Peru. Upper surface. X 1.3. 



