92 Dorsal Fins — True Fishes 



I. Last ray of dorsal fin prolonged in a filament 

 Page 93, figs. A-C 



la. Mouth large; upper jaw reaches to well behind eye 

 Page 93, fig. A 



See Tarpon, p. 286. 



lb. Mouth small; upper jaw reaches at most to front 

 portion of eye 

 Page 93, figs. B, C 



1. Base length of anal fin much shorter than head 

 Page 93, fig. B 



See Thread Herring, p. 292. 



2. Base length of anal fin much longer than head 

 Page 93, fig. C 



See Gizzard Shad, p. 294. 



II. Last ray of dorsal fin not prolonged in a filament 

 Page 93, figs. D, E 



See Ocean Sunfishes, Herrings, Anchovies, Killifishes, 

 Other, p. 132. 



