Plate 52. 



Fig. 1. Chcirasfcr (/azclhtc ; aetinal view of pi. 51, fig. 1. See p. 19G. 



2. Benthopcctcn poJyctcnins; aetinal view of type, enlarged, p. 211. 



3. Pccthiaster inimiciis palawancnsis ; aetinal aspect of type, enlarged, 



.'(bowing also side of ray, and three-quarter view of actinostome, the 

 inner end of a pair of oral plates, etc., p. 185. 



599 



