FISHERY BULLETIN: VOL. 72, NO. 4 



B 



I- 



1 mm 



Figure 6. — Development of the caudal fin structures in larvae oi Harengula jaguana. Fin rays are omitted from 

 the illustrations to show the supporting structures more clearly. Standard length of specimens: A, 9.9 mm; B, 11.5 

 mm; C, 12.4 mm; D, 14.9 mm; E, 18.0 mm; F, 19.3 mm. Abbreviations: HYj^ = hypurals, Ep,.3 = epurals, Uj and 

 U2 = ural vertebrae, P^ and Pyj = preural vertebrae, Hs = hemal spine, Nc = notochord, Un-Urs = uroneurals, 

 Ns = neural spine, Na = neural arch, Ph = parhypural. 



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