PLATE XVI. 
Fig. 1. Holothuria ocellata, Jseger. Dorsal view, natural size. 
Fig. 2. Holothuria martensii. Semper. Dorsal view, natural size. 
Fig. 3. Cucumaria TYiendax, n. sp. (Station 315). Natural size. 
Fig. 4. Holothuria murrayi, var. parva nov. (Statign 219). Ventral view, natural size. 
Fig. 5. Holothuria murrayi, var. parva nov. (Station 219). Dorsal view, natural size. 
Fig. 6. Cucumaria abyssorum, n. sp. (Station 156). Natural size. 
