SEXUAL CHARACTERS — ELASMOBRANCH FISHES 243 



RAIA BLANDA 



The blonde ray 



This skate is of the same type as R. clavata, and all the 

 accessory structures of the clasper are similar, save that the 

 spike is smaller and the shield parallel with and covering and 

 protecting the signal, and of the same hard constituency as the 

 sentinel, is larger, as is also the signal (fig. 19). The clasper 

 gland is as in R. clavata. 



