470 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 2 



PLATE 37 



Fig. 39. Opecoelus xenistii. Enlarged view of acetabular papillae. 



Fig. 40. Opecoelus inimici Yamaguti from Paralabrax nebulifer. Ventral 

 view. 



Fig. 41. Opegaster acuta from Abudefduf saxaiilis. Ventral view. 



Fig. 42. Opegaster pentedactyla from Balistes verres. Dorsal view. 



Fig. 43. Opegaster parapristipomatis Yamaguti from Trachinotus rhodo- 

 pus. Ventral view. 



Fig. 44. Coitocaecum troptcum from Halichoeres dispilus. Dorsal view. 



Fig. 45. C. troptcum. Enlarged, dorsal view of terminal reproductive 

 organs. 



