

B 



PLATE 48. A. Bluefish (Pomatomns saltatrix}. From a photograph from life by A. R. Dugmore, 

 published in Jordan and Evermann's American Food and Game Fishes. By permission of Doubleday, 

 Page and Co. B. Photograph of a living flat-fish, "sand flounder" (Paralichthys dentata}. It is lung 

 upon clean white sand. Against an ordinary sand bottom its mingled grays, browns, and greens would 

 render it almost indistinguishable. It is interesting to observe that the circular markings with dark 

 centres closely resemble shadows of bubbles. The much darker " mud-flounders" are almost equally 

 well protected by their resemblance in color to the dark mud against which they lie. 



