REPORT ON THE HOLOTHURIOIDEA. lf>7 



Elpidia willemoesi, n. sp. 

 Fig. 10. Four-armed deposits with the arms from 0'08 mm. to 0"22 in length. 

 ,, 11. Deposits from the tentacles. 

 „ 12. Deposits from the pedicels. 



Elpidia purpurea, n. sp. 

 ,, 13. Four-armed deposits from the body- wall ; the arms of the largest deposits 



about 0"1 mm. long. 

 ,, 14. Deposits from the tentacles. 



Peniagone naresi, n. sp*. 

 ,, 15. Unbranched or irregularly branched spicula, three-armed bodies with the arms 

 from 0"06 mm. to 0"22 mm., and C-shaped deposits measuring in length 

 about 0'068 mm. 



Peniagone challengeri, n. sp. 



„ 16. Four-armed deposits of various dimensions, the largest having the arms 2 or 

 0"3 mm. long. 



Scotoplanes mollis, Theel. 

 „ 17. C-shaped bodies, about 0*12 mm. long. 



PLATE XXXIV. 



Latmogone wyville-ihomsoni, Theel. 

 Fig. 1. Terminal plates from the ends of the pedicels. 



Scotoplanes murrayi, Theel. 

 „ 2. Spicula and C-shaped bodies from the body- wall ; the former about - b' mm. 

 and the latter about 0'12 mm. in length. 



Elpidia verrucosa, Theel. 

 „ 3. Four-armed deposits from the body-wall, with arms about 0'5 mm. long. 

 ,. 4. Deposits from the pedicels. 



Kohja na an, Theel. 

 ,, 5. Straight and horse-shoe-shaped spicula, and a net-shaped plate. 



Scotoplanes robusta, n. sp. 

 ,, (5. Three-armed body with the arms about - 24 mm. in length, and C-shaped 



ones about 0"1 mm. long. 

 ,, 7. Deposits from the pedicels and tentacles. 



