ELASMOBRANCH BRAIN ORGANIZATION 121 



Table 1. Chondrichthian Central Nervous Systems described in literature 

 or examined by author.* — Continued 



Order Squaliformes 



Etmopterus lucifer 



(Okada et al. 1969, Masai et al. 1973) 

 *Etmopterus hilianus 

 *Squalus acanthias 



(Sterzi 1905, Johnston 1911, Holmgren 1922, Backstrom 1924, 



Saito 1930, Leghissa 1962, Schnitzlein and Faucette 1969, Smeets 



and Nieuwenhuys 1976) 



Dalatias licha 



(Burckhardt 1907) 



Deania rostrata 



(Okada et al. 1969) 



Centroscy Ilium ritteri 



(Okada et al. 1969) 



Order Pristiophoriformes 



Pristiophorus japonicus 

 (Okada et al. 1969) 



Superorder Batoidea 



Order Rajiformes 



*Rhinobatos productus 

 *Platyrhinoidis t rise data 



Raja 



(Hoevell 1911) 



Raja bat is 



(Schnitzlein and Faucette 1969) 



Raja clauata 



(Sterzi 1905, Johnston 1911, Backstrom 1924, Leghissa 1962, 



Veselkin 1965) 

 *Raja eglanteria 



Order Pristiformes 

 No known literature 



*Those examined by author. 



