FISHERY BULLETIN: VOL. 69, NO. 3 



Figures. — Leftside (upper photo) and right side (lower 

 photo) of 45.5 mm TL abnormal Achirus Uneatus reared 

 in the laboratory. Abnormalities include ambicoloration 

 and the presence of a left pectoral fin. 



Figure 6. — Left side (upper photo) and right side (lower 

 photo) of 48.1 mm TL abnormal Achmis lineatus reared 

 in the laboratory. Specimen is ambicolored but other- 

 wise normal. 



Soleidae are extremely rare' (Hubbs and Hubbs, 

 1945). The specimen was a nearly metamor- 

 phosed individual of 5.5 mm TL (Figure 8), 

 that appeared normal in other respects when 

 compared with other postlarvae of the same 

 length. Internal organs were not examined to 

 determine whether they were reversed. Normal 

 A. lineatus of the same length have been illus- 

 trated and described by Houde et al. (1970). 



* The photograph in Herald (1961; fig. 139) should 

 not be mistaken as a reversed Gymnachirii a nnlliamsoni, 

 because in actuality this photograph was produced by an 

 accidental reversal of a Kodachrome slide during prepa- 

 ration of the text. 



SUMMARY 



Most abnormalities of the laboratory-reared 

 A. lineatus appeared related to each other. The 

 presence of related anomalous conditions in in- 

 dividual specimens of flatfishes often has been 

 reported, and the apparent association of ambi- 

 coloration, hooked dorsal fins, incomplete eye 

 migration, and the tendency toward symmetry 

 in paired fins has been discussed (Dawson, 1962; 

 Gudger and Firth, 1936; Norman, 1934). The 

 26 aberrant juvenile specimens in my series 

 of 31 were examined to determine the associ- 

 ation of abnormal conditions in individual fish. 

 p]xamination of Table 1 shows that the abnor- 

 malities are associated. Sixteen specimens had 



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