Part first. 



Fig. 9. Cuciimaria PlancL on a stone, with outstretched tentacles, 

 1/2 nat. size. p. 75. 



Fig. 10. Holothuria tulmlosa, ^3 nat. size. p. 75. 



Fig. II. StichopKS regalis, i/o nat. size. p. 75. 



