44 Skates, Rays 



TORPEDO RAY, BARN-DOOR, OTHER SKATES 



I. Caudal fin large; depth much greater than height of 

 dorsal fins 

 Page 45, figs. A, B 



See Torpedo, p. 257. 



II. Caudal fin very small or absent; when present, depth 

 much less than height of dorsal fins 

 Page 45, fig. C 



Ila. Pores on undersurface of body marked by black 

 lines or dots 

 Page 45, figs. D, E 



See Barn-Door Skate, p. 260. 



lib. Pores on undersurface of body without black lines 

 or dots 

 Page 45, fig. F 



See Smooth-tailed, Resetted, Other Skates, p. 46. 



