PLATE 43. 



Fig. 60. Gyrocotyle fimbriata. Transverse section through ciliated 

 excretory canal. Showing circular muscle coat. Iron haematoxylin. X 

 1000. 



Fig. 61. Longitudinal section through ciliated excretory canal (taken 

 at one side of attachment of cilia). Showing circular muscle coat. Iron 

 haematoxylin. X 1000. 



Figs. 62, 63. Flame cells. X 1500. 



Fig. 64. Cells of prostate gland. X 1500. 



Fig. 65. Sagittal section through penis papilla and ejaculatory duct. 

 X 100. 



can. canal. 



cil. cilia. 



circ. muse. 1. circular muscle layer. 



ejac. duct ejaculatory duct. 



fl. flame. 



long. muse. 1. longitudinal muscle layer. 



in. long. inner longitudinal muscle. 



pa r. pa renchyma . 



par. nu. parenchyma nucleus. 



pen. pap. penis papilla. 



prost. d. prostate duct. 



prost. gl. prostate* gland. 



rad. muse. f. radial muscle fibre. 



spnl. spinule. 



[458] 



