RAJIDAE 



27 



in the upper jaw. Upper surface of disc with numerous small spinules, arranged much 

 as in R. brachyurops, but a little larger, less numerous, and placed rather wider apart ; 

 no enlarged median spines on disc; median spines on tail somewhat stronger, com- 

 mencing above origin of pelvic fins. Dorsal fins usually without a spine between them. 



Fig. 9. Raja griseocauda. Holotype. x 



Brownish, with or without traces of darker spots and rings, but apparently without the 

 pectoral ocellus or the pale spots on the tail ; lower surface yellow or white ; posterior 

 margins of pectorals and pelvics dusky ; lateral parts of lower surface of tail, or even the 

 whole of its surface, stained with greyish brown. 

 Hab. Patagonian-Falklands region. 



4"2 



