474 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 2 



PLATE 39 



Fig. 56. Bianium adplicatum from Cheilichthys annulatus. Dorsal view. 



Fig. 57. B. adplicatum. Enlarged view of pharynx. 



Fig. 58. Myzotus vhellosus from Caulolatilus sp. Ventral view. 



Fig. 59. M. <vitellosus. Enlarged view of acetabular region to show ace- 

 tabular flaps. 



Fig. 60. M. vitellosus. Sagittal section through acetabular region show- 

 ing location of genital pore and muscular structure of acetabu- 

 lum. 



Fig. 61. Plagioporus gaitrocotylus from Calamus brachysomus. Ventral 

 view. 



Fig. 62. P. gastrocotylus. Cross section through acetabular region show- 

 ing acetabular fold. 



Fig. 63. P. gastrocotylus. Longitudinal section through acetabular region. 



