2 94 Memoir Sears Foundation for Marine Research 



Figure 69. Heads showing shape of mandible and cheek, left, Alosa sapidissima, 93 mmTL, Clifton Beach, 

 Maryland; right, Pomolobus aestivalis, 82 mm TL, Smith Point, Maryland. Both drawn by Louise Nash. 



Range. Two species occur off Europe, another off northern Africa, and two off 

 North America, where the recorded range extends from southeastern Newfoundland, 

 the St. Lawrence River, Quebec, and northern Nova Scotia southward to Indian River 

 City, Florida, and the Gulf of Mexico westward to the Mississippi River. 



Key to North American Species 



I a. Lower limb of first gill arch with 59-73 rakers (26-43 i" young under 125 mm). 



sapidissima (Wilson) 181 1, p. 295. 



lb. Lower limb of first gill arch with 42-48 rakers in adults (27-33 •" young 48— 



90 mm long). alabamae Jordan and Evermann 1896, p. 308. 



^ 



Figure 70. First branchial arch, showing numerous gill rakers: left, Jlosa sapidissima, 550 mmTL, USNM 

 20969; RIGHT, A. alabamae (with fewer rakers), 390 mmTL, type, USNM 47689. Both drawn by Ann 

 S. Green. 



