Fishes of the Western North Atlantic 



335 



Figure 83. Pomolobus pseudoharengus, from Potomac River, top, young, showing scales developing, 29 mm TL, 

 22 mm SL, USNM 85668; bottom, young adult, 47.5 mm TL, USNM 69833. upper drawn by Ann S. 

 Green; lower by Nancy D. Patton. 



tember, 50—79 mm;^* 138 for October, 55—94 mm; 221 for November, 55—109 mm; 

 and 19 for early in December, 60— 79 mm TL. In Chesapeake Bay, young that ap- 

 peared to be in their first winter, as judged from their small size, were 75—140 mm in 

 January, 80—1 14 mm in February, and 80—145 mm in March. The young fry taken 

 in the Bay during the winter varied so widely in length that it is clear they represented 

 more than one year-class. The 262 older fish taken during the winter ranged between 

 1 15—224 mm, or 1 15— 194 mm, if the three largest examples are excluded. 



The foregoing data seem to show that the young of this species grow to a length 

 of 55—109 mm (2.20—4.36 in.) while in fresh water, to about 65—145 mm (2.6— 

 5.8 in.) at one year of age, and to about i 15-195 mm (4.6—7.8 in.) at two years of 



35. The largest young of the season evidently are not represented in this collection. 



