50 Rays 



STING RAYS 



I. Outermost edge of pectoral fins broadly rounded 

 Page 51, figs. A, B 



la. Distance between spiracles equal to distance from 

 tip of snout to a point between the two eyes 

 Page 51, fig. A 



See Say's Sting Ray, p. 265. 



lb. Distance between spiracles equal to distance from 

 tip of snout to a point well before eyes 

 Page 51, fig. B 



See Stingaree, p. 265. 



II. Outermost edge of pectoral fins more angular 

 Page 51, figs. C, D 



Ila. Greatest diameter of orbit of eye much less than 

 length of spiracle 

 Page 51, fig. C 



See Northern Sting Ray, p. 264. 



lib. Greatest diameter of orbit of eye equal to or 

 larger than length of spiracle 

 Page 51, fig. D 



See Southern Sting Ray, p. 263. 



