Fishes of the JVester?t North Atlantic 165 



12b. Depth of body i5-i8»/o of SL; pectoral fin 12. 5-13. 7 "/o 



of SL; gill rakers very slender, close-set, often difficult to 



count. cubana (Poey) 1868, p. 188. 



1 1 b. Gill rakers on lower limb usually 16-22 (rarely 23 in h. hepsetus), 



on upper limb usually 14-20 (rarely 13 or 21). 



i6a. Depth of body 1 7.4-1 8.8 "/o of SL; maxillary bluntly pointed 



distally, its upper margin rounded, extending to joint of 



mandible, 1 7.2-1 8.2 "/o of SL; vertebrae 44 or 45. 



ginsburgi Hildebrand 1943, p. 190. 

 1 6b. Depth of body 1 8.5-23 "/o of SL; maxillary usually sharply 

 pointed distally, generally extending beyond joint of man- 

 dible, sometimes to or nearly to margin of opercle (mod- 

 erately short, rather blunt distally, and rounded above in 

 lamprotaenia\ 1^-24. ^"j^ of SL; vertebrae 39-43 (/i. hep- 

 setus sometimes with 44). 



17 a. Longest rays of dorsal fin usually reaching well 

 beyond tip of last ray when deflexed; origin of anal 

 about under beginning of posterior third of dorsal 

 base; axillary scale of pectoral only a little more than 

 half of length of fin, 3.0-3.6 in head; cheek fully as 

 long as eye and half ot snout. 



lamprotaenia Hildebrand 1943, p. 192. 

 17 b. Longest rays of dorsal fin failing to reach tip of last 

 ray when deflexed; origin of anal usually about under 

 middle of dorsal base, sometimes posterior to middle; 

 axillary scale of pectoral 2.0-2.5 in head; cheek usually 

 not much longer than eye. 



hepsetus (Linnaeus) 1758, p. 194. 

 1 8 a. Pectoral fin often failing to reach base of pelvic 

 by diameter of eye; silvery lateral band usually 

 75 "/o of width of eye. 



h. hepsetus Hildebrand 1943, p. 194. 



I 8 b. Pectoral fin frequently extending to or nearly to base 



of pelvic ; silvery lateral band often scarcely wider 



than pupil, h. colonensis Hildebrand 1 943, p. 194. 



lob. Origin of anal under or behind base of last dorsal ray; depth of head 



at joint of mandible equal to postorbital length; snout scarcely shorter 



than eye, 4.3-5.5 in head; cheek about as long as snout and eye 



combined; silvery lateral band as broad as eye. 



lyolepis (Evermann and Marsh) 1902, p. 200. 



9b. Pectoral with a long filamentous ray; origin of dorsal fin usually nearer to 



tip of snout than to base of caudal. filifera (Fowler) 191 5, p. 202. 



