216 



W. HAROLD LEIGH-SHARPE 



-O 



mm. 



Fig. 17 Trygon pastinaca. CI. GL, clasper gland; H., hypopyle; Pe., pent; 

 Rh., rhipidion. 



Fig. 18 Trygon pastinaca, a transverse section of the clasper gland (hae- 

 malum-eosin). P., papilla. 



