450 Bulletin 47, United States National Museum. 



221. CETENGRAULIS, Giinther. 



Cetengraulis, GUNTHER, Cat. Fishes, Brit. Mus., vn, 383, 1868, (edentulus). 



This genus differs from Stoleyhorus in having the gill membranes 

 broadly united. The gill rakers are usually long, and the teeth are rudi- 

 mentary or wanting. Two species, (nfjrog, whale; Engraulis; the long 

 gill rakers suggesting whalebone.) 



a. Anal rays 20 to 22 ; eye 5% in head. MYSTICETUS, 740. 



aa. Anal rays 23 to 25 ; eye 4J^ in head. EDENTULUS, 741. 



740. CETENGRAULIS MYSTICETUS (GUnther). 



Head 2 to 2 ; depth 3f ; eye 5. D. 15 to 17 ; A. 20 to 22 ; scales 

 42-14. No teeth ; maxillary not reaching root of mandible ; gill rakers 

 very long, setiform, 10 -f- 42. Insertion of dorsal midway between eye 

 and base of caudal ; pectorals extending to or a little beyond ventrals. 

 Coloration uniform. Panama. (Giinther.) (Balcenamysticetus, the Right 

 Whale, the long gill rakers suggesting whalebone.) 

 Engraulis mysticelus, GUNTHER, Proc. Zool. Soc. Lond., 1866, 604, Panama. 

 Cetengraulis myslicetus, GUNTHER, Cat., vn, 383, 1868. 



741. CETENGBAULIS EDENTULUS (Cuvier). 



(BOCON.) 



Head 3 to 3 ; depth 3 ; eye 4 to 4. D. 15 ; A. 23 to 25 ; scales 40-11. 

 Body deep, not greatly compressed ; belly compressed, bluntly trenchant, 

 not serrate ; snout short, sharply pointed, If in eye ; maxillary slender, 

 finely toothed posteriorly only in the young, not reaching root of mandible ; 

 lower jaw toothless. Gill rakers close-set, longer than eye, 3i in head; 

 cheeks triangular, longer than high. Scales not caducous. Insertion of 

 dorsal midway between front of eye and base of caudal ; pectoral short, 

 2 in head, not reaching ventral; caudal deeply forked, 1-J- in head; dor- 

 sal and anal with large basal sheaths. Silvery, darker above, a dark 

 lateral band concealed by the silvery scales. Length 6 inches. West 

 Indies to Brazil, common in Cuba, (edentulus, toothless, which is not 

 quite true of young examples.) 



Sprat, SLOANE, Hiet. Jamaica, ir, 282, 1727, Jamaica. 



Engraulis edentulus, CUVIER, Regne Animal, Ed. 2, n, 323, 1829, Jamaica; after SLOANE; CUVIEE 



& VALENCIENNES, Hist. Nat. Poiss., xxi, 51, 1848. 

 Engraulis brevis, POEY, Repertorio, i, 379, 1866, Cuba. 

 Celengraulis edentulus, GUNTHER, Cat., vn, 383, 1868. 

 Cetengraulis brevis, SWAIN & MEEK, Proc. Ac. Nat. Sci. Phila, 1884, 35. 



222. PTERENGRAULIS, Gunther. 



Pterengraulis, GUNTHER, Cat. Fishes, vn, 398, 1868, (atherinoides). 



This genus is very close to Stolephorus, differing chiefly in the insertion 

 of the dorsal, which is a little behind the front of the very long anal fin. 

 South American. (Trrepbv, fin; Engraulis.) 



742. PTERENGRAULIS ATHERINOIDES (Linnjeus). 



Head 4f ; depth 4 ; eye 5i ; snout 6f . D. 10 or 11 ; A. 31 to 33 ; scales 

 40 to 44-8. Body elongate, compressed, the lower profile arched like the 



