124 THE CYPRINODONTS. 



lower surface of head silvery, top of head darker, with or without a blackish 

 line along the middle of the flank and transverse cloudings on the fins. 

 Small scattered spots of brownish are usually present along the middle of 

 the flank, in cases arranged in a longitudinal series in a darkish band from 

 the opercle to the base of the caudal. Under a powerful lens, body, head, 

 and to some extent the fins are seen to be puncticulated with darker. 

 Alabama to Texas. 



HAPLOCHILUS. 



AplocUlm McClell., 1839, As. Res., XIX, 301. 426 ; Blkr., 1863, Cypr., 483, 490, — 1863, Atl., HI, 

 141. Apocheilini Blkr., 1860, Cypr., 483. Aplocheiliformes Blkr., 1863, Atl., Ill, 140. 



PanchaxN-A., 1846,0. V. Poiss., XVIII, 580; Caut., 1849, J. As. Soc. 1234; Blkr., 1852, Verb. 

 Bat. Gen., XXIV, extr. p. 22,-1860, Cypr., 483, 488, — 1S63, Atl, III, 141. 



Haplochilus Gtlir., 1866, Cat., VI, 310; Day, 1873, Fish. lud. & Burm., 276,-1878, Fish. lud., 

 I, 521. 



Body depressed forward, compressed behind the middle; caudal pedicel 

 deep. Head elongate, shovel-shaped in front, flattened on the crown. Snout 

 broad, produced. Both jaws much depressed, with firm symphyses, upper 

 jaws protractile. Teeth subconical, hooked, in bands. Body cavity less 

 than half the total length ; intestine short. Dorsal fin short, base ex- 

 tending farther back than that of anal. Anal longer than dorsal, farther 

 forward. Japan, Asia, Africa, and Central America. 



One American species has been described, from Costa Rica. 



By snout, mouth, fins, and general features the species placed in this 

 genus appear to be sufficiently distinguished from those of Zygonectes. 

 To unite these genera, with the characters possessed, would necessitate 

 placing both in Fundulus. 



Haplochilus pancliax. 



Plate III. Fig. 7, teeth. 



EsoxpancAax Ham. Buch., 1822, Gang. Fish, 211, 380, pi. 3, fig. 69. 



Aplocheilus panchax McCl., 1839, As. Res., XIX, 302. 



Aplocheitus chrnsosliynms McCl., 1839, As. Res., XIX, 301, 426, pi. 42, fig. 2 ; Blk., 1860, Cypr., 487. 



Panchax Buchanam Val., 1846, C. V. Poiss., XVIIT, 383; Blk., 1S53, lolitli. Beng., 72, 144,-1855, 

 K.it. Tyd. Ned. lud., IX, 392, 393,-1857, A. S. S. I. N., Ill, 27,-1859, En. Sp. Pise. Ind., 155,— 

 1860, A. S. S. I. N., VIII, 25, 54,— Cypr., 487, 488,-1863, Atl., Ill, 141, pi. 144 (Cypr. 43), fig. 3; 

 Blyth, 1858, J. As. Soc. Beng., 288 ; Mart., 1876, Preuss. Exp. Zool., I, 209. 



Panchax Kuhtii Val., 1846, C. V. Poiss., XVIII, 384. 



Panchax Panchax Cant., 1S49, J. As. Soc., 1234, Cat., 252. 



Panchax melanotoptcrus Blk., 1850, Verli. Bat. Gen., XXII, ext. p. 22,-1852, XXIV, est. p. 22,— 

 1853, Iclith. Beng., 145, — 1860, Cypr., 487. 



