418 



FISHERY BULLETIN OF THE FISH AND WILDLIFE SERVICE 



STANDARD 



100 

 LENGTH 



I 60 



(MM) 



Figure 12. — Relation of body depth to standard length of Mullldae of the western North Atlantic. Inacf. Depths of 

 pelagic forms as opposed to depths of bottom-living forms of Psciiflititeiicii-s mdculatiiK. 



streaked pigment spots formed bars. Tliese bars 

 were directed anteriorly toward tlie midline at an 

 oblique angle from the upj)er and lower lobes of 

 the caudal fin, almost joining; at the lateral midline 

 to form several arrow points. Below and imme- 

 diately above the lateral midline, the areas between 

 the bars were relatively clear of pigment. Imme- 

 diately below the most dorsal row of pigment spots 

 there was additional pigmentation. In dorsal 

 view, the body siiowed a single row of large, dark 

 pigment spots along each side of the dorsal fins, 

 which formed a long, slim "V" as the body tapered 

 toward the caudal fin. The areas over the tip of 



the snout and frontal and supraoccipital bones 

 were heavily pigmented. In vent ral view, a double 

 row of chromatophores, similar to the one on the 

 dorsal surface, formed a ''V. The fins were clear 

 except for an occasional pigment spot on the 

 caudal. 



In a 29.0-nnn. specimen the oblique bars above 

 the lateral midline had given place to a homo- 

 geneous mottling of pigmentation. The bars 

 below the lateral midline were still retained, the 

 caudal and both dorsal fins had a few pigment 

 spots, and the pelvics and anal were clear. In a 

 36.5-mm. specimen the oblique bars below the lat- 



