PLATE 97. 
1-5. Paleopneustes hystrix A. Ag.; “Blake,” 1878-79, 
Station 157, off Montserrat 120 fms. 
1. Denuded specimen, 135 mm. in length, seen from the actinal side, 
2. Abactinal system of same. 
3. Anal system of same. | 
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4, Primary interambulacral spine of the actinal side. | 
5. Primary interambulacral spine of the abactinal side. | 
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