﻿280 PROCEEDINGS OF THE NATIONAL MUSEUM vol. loo 



3a.' Gill rakers less numerous, 28 to 37, usually 30 to 35, on lower limb of first 



arch; ventral scutes 29 to 32, usually 30 or 31; Florida Keys, Bahamas, 



West Indies, Atlantic coast of Central and South America from Yucatdn 



to Brazil, and Pacific coast from the Gulf of California to Peru. 



4a. Scales more numerous, in 42 to 44, usually 43, transverse rows and 12 



or 13, usually 12, longitudinal rows; predorsal scales 15 to 19, usually 



16 to 18; Pacific coast of Mexico from the Gulf of California to 



Acapulco 3. Harengula thrissina 



46. Scales less numerous, in 38 to 42, usually 39 to 41, transverse rows and 



11 longitudinal rows; predorsal scales 11 to 14, usually 12 or 13; 



Florida keys. West Indies, Atlantic coast of Central and South America 



from Yucatdn to Brazil, and Pacific coast from Panama to Peru. 



5a. Anal rays less numerous, 15 to 17, usually 16; anal base usually 



slightly shorter than pelvic fins; tip of dorsal fin blackish; Pacific 



coast from Panama to Peru 4. Harengula peruana 



5&. Anal rays more numerous, 17 to 19, usually 18; anal base usually 



slightly longer than pelvic fins; tip of dorsal fin not blackish; Florida 



Keys, Bahamas, West Indies, and Atlantic coast of Central and 



South America from Yucatdn to Brazil. 



6a. Gill rakers less numerous, 28 to 34, usually 29 to 33, on lower limb 



of first arch (see table 1); head less deep, its depth at occiput 3.7 



to 4.1, usually 3.8 to 4.0, in length; 1.7 to 1.9, usually 1.8, in 



predorsal length; body more slender, its greatest depth 2.9 to 



3.6, usually 3.0 to 3.5, in length; 1.3 to 1.7, usually 1.4 to 1.6, in 

 predorsal length; distance between occiput and origin of dorsal 

 fin 1.2 to 1.6, usually 1.3 to 1.5, in greatest depth of body; caudal 

 peduncle more slender, its least depth 4.1 to 4.8, usually 4.2 to 



4.7, in predorsal length; distance between origin of dorsal and 

 center of eye usually greater than greatest depth of body; Florida 

 Keys, Bahamas, West Indies, and Atlantic coast of Central and 

 South America from Yucatan to Brazil.. 5. Harengula clupeola 



6b. Gill rakers more numerous, 30 to 37, usually 32 to 35, on lower limb 

 of first arch (see table 1); head deeper, its depth at occiput 3.1 to 



3.8, usually 3.2 to 3.7, in length; 1.4 to 1.7, usually 1.5 or 1.6, in 

 predorsal length; body deeper, its greatest depth 2.5 to 3.0, 

 usually 2.6 to 2.9, in length; 1.1 to 1.3 in predorsal length; distance 

 between occiput and origin of dorsal 1.6 to 2.1, usually 1.7 to 2.0, in 

 greatest depth of body; caudal peduncle deeper, its least depth 3.4 to 4.1, 

 usually 3.7 to 3.9 in predorsal length; distance between origin of 

 dorsal and center of eye usually less than greatest depth of body; 

 West Indies (Jamaica, Hispaniola, Puerto Rico) and Atlantic 

 coast of Central and South America from Nicaragua to Brazil. 



7a. Ventral scutes more numerous, 30 to 32, usually 31 (see table 1); 

 eye smaller, 3.4 to 4.5, usually 3.6 to 4.0, in greatest depth of 

 body; West Indies from St. Lucia southward, and Atlantic 

 coast of South America from Venezuela to Brazil. 



6. Harengula pensacolae majorina 



76. Ventral scutes less numerous, 29 to 31, usually 30 (see table 1); 

 eye larger, 3.1 to 4.2, usually 3.3 to 3.7, in greatest depth of 

 body; West Indies (Jamaica, Hispaniola, Puerto Rico) and 

 Atlantic coast of Central and South America from Nicaragua 

 to Colombia 7. Harengula pensacolae caribbaea 



