PLATE LIV. 
Figs. 1-4. ANTEDON ACGLA, n. sp. 
Diam, Page 
Fig. 1. Ventral aspect of a portion of an arm from its lower third, . x 7 83 
Fig. 2. Side view of one of the genital pinnules, : 1 83 
Fig. 3. The ventral surface of another genital pinnule, : « 369 EO 83 
Fig. 4. The ambulacral skeleton of a later pimnule with the covering 
plates closed down, : : : : oe 20 83 
Fig. 5. ANTEDON ANGUSTICALYX, n. sp. 
Fig. 5. The ventral aspect of an ungrooved genital pinnule, . Fok ms 83 
Figs. 6, 7. ANTEDON INCERTA, N. sp. 
Fig. 6. Side view of a genital pinnule with its ambulacrum, . = ey alles 83 
Fie. 7. The ambulacral skeleton of an arm and the lower parts of the 
pinnules, . < : : . : x 4D 83 
Fig. 8. ANTEDON INAQUALIS, n. sp. 
Fig. 8. The ambulacral skeleton of a pinnule ; from the side, . a a XO) 83 
Fig. 9. ANTEDON BASICURVA., n. sp. 
9. Side view of the ambulacral skeleton of a pinnule mounted in 
dammar, . : ; ; : : pea tS () 83 
Figs. 10, 11. ACTINOMETRA STROTA, n. sp. 
Fie. 10. The peristome of a dry disk, with the origins of the ambu- 
lacra, : , : ; : 5 nna 3 85 
Fig. 11. Vertical section of an ambulacrum of a dry disk, : 3 x ae 85 
