1 80 Stover's Synopsis of the Fishes of North America. 



GENUS XI. HYDRARGYRA, Lesueur. 



Head flat, shielded above with large scales, the centre scale largest. Teeth 

 in the jaws and throat ; those of the jaws conic and recurved ; none in the 

 palate ; jaws protractile ; lower jaw the longer. Scales on the opercula and 

 body. Branchial rays, four to five. Ventral fins six-rayed. The dorsal fin 

 situated nearer to the tail than the head, opposite to the anal. 



1 . Hydrargyra fasciata, Schn. 



Back and sides greenish or olive. The sides are crossed by from ten to twenty vertical 

 white lines or spots. Within these are numerous silvery-white and steel-blue dots, which 

 extend over the dorsal and anal fins. In the spawning season, the abdomen is of a brilliant 

 golden yellow ; hut during the rest of the year it is white. 



D. 12. P. 15. V. 6. A. 11. C. 27. Mitchill. Length, 4 inches. 



D. 10. P. 17. V. C. A. 10. C. 101. Dekay. 



Connecticut, Ayres. New York, Mitchill, Dekay. Carolina, Dekay. 



Esox pisciculus, Yellow-bellied Killifish, Mitchill, Trans. Lit. anil Phil. Soc. of N. Y., i. p. 441. 



Fundulus fasciatus, Vai.., Humboldt et Bonplamd, n. p. 162, pi, 62, figs. 1,4,5. 



Fundulus zebra, Barred Killifish, Dekay's Report, p 219. 



Hydrargyra fasciata (ScaN.), Ayres, Bost. Journ. Nat. Hist., IV. p. 2CG. 



2. Hydrargyra pisculenta, Mitchill. 



Olive-green above; lighter on the sides, and becoming whitish, tinged with yellowish on 

 the abdomen. Opercles, pectorals, and ventrals light greenish-yellow. Caudal nearly even, 

 round. In large specimens, the color of the sides is uniform ; in very small specimens are 

 black vertical bands, constituting the Esox zonatus of Mitchill. 



D. 13. P. 15. V. 6. A. 11. C. '27. Mitchill- 



D. 11. P. 17. V. 6. A. 11. C. 25. Dekay. Length, 1 to 4 inches. 



Connecticut, Ayres. New York, Mitchill, Dekay. 



Esox pisculentus, White-bellied Killifish, Mitchill, Trans. Lit. and Phil. Soc. of N. Y., i. p. 441. 

 Esox zonatus, Banded Killifish, IVIitchill, Trans. Lit. and Phil. Soc. of N, Y., l. p. 413. 

 Fundulus viridescens, Big Killifish, Dekay'b Report, p. 217, pi. 31, fig. 99. - 

 Hydrargyra pisculenta, Ayres, Bost, Journ. Nat. Hist., iv. p. 2G~. 



3. Hydrargyra flavula, Mitchill. 



Female- Yellowish green above, lighter upon the sides, white beneath ; opercles, and upper 

 portion of abdomen, golden. Several interrupted longitudinal black bands, varying from one 

 to four, upon the sides. Prom two to four transverse bands of a similar color, at the base of 

 the caudal fin. Dorsal rather longer than high. 



Male. Back and sides greenisli black ; sides crossed by numerous slate-colored, nearly 



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