Figure 2. — Otoliths (sagittae) of two species of halfbeaks from Eden, New South Wales, 

 Australia. Outer surface on left, inner surface, with sulcus, on right. Top to bottom: 

 Hyporhamphus australis, 292 mm SL (standard length) ; Hy. australis, 269 mm SL; Hy. 

 australis X vtelanochir, 280 mm SL; and Hy. melanochir 264 mm SL. 



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