70 TELEOSTEI: ISOSPONDYLI. — XIII. 



4^-; depth 3. 1). 12. A. 28. Scales 5-56-7. L. 15. Great 

 Lakes and Mississippi Valley, abundant; one of our most beautiful 

 fresh-water fishes. (Lat., polished.) 



bb. Belly nowhere carinate. 



L62. H. selenops Jordan & Bean. Body elongate, less com- 

 pressed; eve very large, 2^ in head. Head 41 ; depth 4. D. 12 

 A. 27. Cumberland K. to Ala. {ae^utj, moon ; &\js, eye.) 



Family XXVI IT. ALBULID^l. (The Lady-fishes.) 



Body elongate, little compressed, covered with small, silvery 

 scales: head naked; snout conic, pig-like, overhanging the small, 

 inferior mouth; maxillary short, with supplemental bone ; preorbi- 

 tal very broad ; sides of upper jaw formed by maxillaries ; eye 

 large, with an adipose eyelid; gill rakers tubercle-like; preopercle 

 with membranous edge; villiform teeth on jaws, vomer, and pala- 

 tines ; coarse blunt teeth on tongue and roof of mouth; lateral line 

 present ; belly flattish, not carinate; D. moderate, inserted before 

 V. ; A. very small ; no adipose fin ; C. forked. One species, in 

 most warm seas. 



68. ALBULA (Gronow) Bloch & Schneider. (Lat., white.) 



1G3. A. vulpes (L.). Lady-fish. Bone-fish. Macabi. 



A band of elongate scales along middle of back; brilliantly silvery. 

 Head 3f; depth 4. D. 15. A. 8. Scales 9-71-7. L. 30. Warm 

 seas, N. to Cape Cod. (Lat., fox.) 



Family XXTX. ELOPID^E. (The Tarpums.) 



Body elongate, more or less compressed, covered with silvery, 

 cycloid scales ; mouth large, terminal, the lower jaw prominent ; 

 maxillary long, of three pieces, forming side of upper jaw; an elon- 

 gate bony plate between branches of lower jaw (as in Amid) ; bones 

 of mouth almost all with villiform teeth ; eye large, with an adipose 

 eyelid ; gill rakers long and slender; belly not compressed, covered 

 with ordinary scales ; D. over or behind V.; C. forked; no adipose 

 iin. Genera 2, species 4 or 5, in warm seas. 



'j. Body elongate, with small scales; A. smaller than D.; pseudobrancluae 



present. (Elqpince.) Elops, G9. 



aa. Body oblong, compressed, with very large scales; no pseudobranchia>; 

 last ray of D. much produced. {Megalopince.). . . MEGALors, 70. 



69. ELOPS Linnaeus. (? Ao^, name of some sea-fish.) 



1G4. E. saurus L. Tenpounder. Silvery, darker above; gular 

 plate about three times as long as broad ; eye large ; tail very long; 

 C. deeply forked. Plead 4}; depth 5^. D. 20. A. 13. "Scales 

 12-120-13. L. 36. Warn seas, N. to Cape Cod ; remarkable for 



